Contents.
planet: 4 - Mars
satellites: M1 - Phobos: 2212,
M2 - Deimos: 2700
total number: 4912
type: relative
dates: 1877-1982
observatory:
0 - Greenwich ( 10 obs)
1 - Crowborough (Ealing) ( 159 obs)
7 - Paris ( 1 obs)
84 - Pulkovo ( 310 obs)
85 - Kiev ( 230 obs)
105 - Moscow ( 2 obs)
119 - Abastuman ( 216 obs)
135 - Kasan ( 11 obs)
192 - Tashkent ( 12 obs)
481 - (=972) Dun Echt ( 16 obs)
503 - Cambridge ( 58 obs)
522 - Strasbourg ( 29 obs)
662 - Lick Observatory, Mount Hamilton (1718 obs)
672 - Mount Wilson ( 12 obs)
689 - U.S. Naval Observatory, Flagstaff ( 10 obs)
711 - McDonald Observatory, Fort Davis ( 22 obs)
742 - Drake University, Des Moines (Morrison Observ.)( 55 obs)
754 - Yerkes Observatory, Williams Bay ( 28 obs)
786 - U.S. Naval Obs., Washington (since 1893) (1045 obs)
787 - U.S. Naval Obs., Washington (before 1893) ( 534 obs)
802 - Harvard Observatory, Cambridge ( 415 obs)
981 - Armagh (Sherrington, Bray, Ireland) ( 11 obs)
996 - Oxford ( 8 obs)
Reference.
Erck W. (1877)
Satellite of Mars. Astronomical register. V. 15. N. 179. P. 293-294.
Rodgers J. (1877)
Letter to the Hon. R. W. Thompson, Secretary of the Navy,
announcing the discovery of satellites of Mars.
Astronomische Nachrichten. V. 90. N. 2154. P. 273-276.
1877AN_____90__273R
Rodgers J. (1877)
Letter to the Hon. R. W. Thompson, Secretary of the Navy,
announcing the discovery of satellites of Mars.
Monthly notices of the Royal astronomical society.
V. 37. N. 9. P. 443-445.
1877MNRAS__37__443R
Common A.A. (1878)
Note on the satellites of Mars and Saturn.
Monthly notices of the Royal astronomical society.
V. 38. N. 3. P. 97-99.
1878MNRAS__38___97C
Hall A. (1878)
Observations and Orbits of the Satellites of Mars,
with data for Ephemerides in 1879.
U.S.Government Printing Office. Washington D.C. P. 1-46.
1878QB403_H17______
Hall A. (1878)
Observations of the satellites of Mars, made with the 26-inch
refractor of the U.S. Naval Observatory, Washington.
Astronomische Nachrichten. V. 91. N. 2161. P. 11-14.
1878AN_____91___11H
Pritchett H.S. (1878)
Observations of the satellites of Mars,
made with the 12 1/4-inch Equatorial of the Morrison Observatory.
Astronomische Nachrichten. V. 91. N. 2172. P. 185-188.
1878AN_____91__185P
Waldo L. (1878)
Observations of the satellites of Mars, made at the Observatory
of Harvard College.
Astronomische Nachrichten. V. 92. N. 2190. P. 87-94.
1878AN_____92___87W
Common A.A. (1879)
Observations of the satellites of Mars.
Monthly notices of the Royal astronomical society.
V. 40. N. 2. P. 95-99.
1879MNRAS__40___95C
Lindsay Lord (1879)
Observations of the outer satellite of Mars made at Dun Echt observatory.
Monthly notices of the Royal astronomical society.
V. 40. N. 2. P. 102-103.
1879MNRAS__40__102L
Royal observatory, Greenwich (1879)
Micrometer-Measures of the Outher Satellite of Mars, Deimos,
made with the South-East Equatoreal at the Royal Observatory,
Greenwich, in the Year 1879
Royal observatory, Greenwich. P. 64-65.
1879ses__book___64R
Common A.A. (1880)
Beobachtung des ausseren Marssatelliten.
Astronomische Nachrichten. V. 96. N. 2283. P. 41-42.
1880AN_____96___41C
Hall A. (1880)
Observations of the satellites of Mars.
Monthly notices of the Royal astronomical society.
V. 40. N. 5. P. 272-283.
1880MNRAS__40__272H
Maunder (1880)
Observation of the outer satellite of Mars, made at the Royal
observatory, Greenwich.
Monthly notices of the Royal astronomical society.
V. 40. N. 3. P. 161-162.
1880MNRAS__40__161M
Pickering E.C. (1880)
Observations of the satellites of Mars, made at the Harvard
College Observatory.
Astronomische Nachrichten. V. 97. N. 2312. P. 115-128.
1880AN_____97__115P
Pickering E.C. (1880)
Observations of the satellites of Mars, made at the Harvard
College Observatory. (2).
Astronomische Nachrichten. V. 97. N. 2314. P. 145-148.
1880AN_____97__145P
Pritchard C. (1880)
Observations of the exterior satellite of Mars at the Oxford
Univesity observatory.
Monthly notices of the Royal astronomical society.
V. 40. N. 5. P. 292-292.
1880MNRAS__40__292P
Pritchett C.W. (1880)
Observations of Phobos and Deimos.
Astronomische Nachrichten. V. 97. N. 2307. P. 45-48.
1880AN_____97___45P
Common A.A. (1882)
Satellites of Mars 1881.
Astronomische Nachrichten. V. 103. N. 2463. P. 233-234.
1882AN____103__233C
Hall A. (1882)
Observations of the satellites of Mars in the opposition of 1881.
Astronomische Nachrichten. V. 102. N. 2438. P. 217-220.
1878AN____102__217H
Maunder (1882)
Observation of the outer satellite of Mars made at the
Royal Observatory, Greenwich.
Monthly notices of the Royal astronomical society.
V. 42. N. 3. P. 100-100.
1882MNRAS__42__100M
Pickering E.C. (1882)
Satellites of Mars (Charpers 5 and 6).
Annals of the Astronomial observatory of Harvard College.
V. 13. P. 92-143.
1882AnHar__13___92P
Hall A. (1884)
Observations made at the U.S. Naval observatory, Washington.
Monthly notices of the Royal astronomical society.
V. 44. N. 7. P. 358-361.
1884MNRAS__44__358H
Henry Paul, Henry Prosper (1884)
Observations faites a l'Observatoire de Paris
(equatorial de 0.38 m; tour de l'Est)
Bulletin Astronomique, 1-e serie. V. 1. P. 15-15.
1884BAOdP___1___15H
Henry Paul, Henry Prosper (1884)
Observations faites a l'Observatoire de Paris
(equatorial de 0.38 m; tour de l'Est) (en fevrier).
Bulletin Astronomique, 1-e serie. V. 1. P. 89-89.
1884BAOdP___1___89H
Hall A. (1886)
Observations at U.S.N. observatory.
Monthly notices of the Royal astronomical society.
V. 46. N. 8. P. 454-454.
1886MNRAS__46__454H
Henry Paul, Henry Prosper (1886)
Observations des satellites de Mars, Uranus et Neptune
faites a l'Observatoire de Paris (equatorial de 0.38 m; tour de l'Est).
Bulletin Astronomique, 1-e serie. V. 3. P. 488-488.
1886BAOdP___3__488H
Hall A. (1888)
Observations on Mars.
Astronomical journal. V. 8. N. 181. P. 98-98.
1888AJ______8___98H
Keeler J.E. (1888)
Micrometer observations of the satellites of Mars.
Astronomical journal. V. 8. N. 178. P. 73-78.
1888AJ______8___73K
Hall A. (1890)
Observations of the satellites of Mars in 1890.
Astronomical journal. V. 10. N. 226. P. 74-75.
1890AJ_____10___74H
Keeler J.E. (1890)
Observations of the satellites of Mars.
Astronomical journal. V. 10. N. 228. P. 89-91.
1890AJ_____10___89K
Campbell W.W. (1892)
Observations of Mars and its satellites.
Astronomical journal. V. 12. N. 282. P. 137-139.
1892AJ_____12__137C
Hall A. (1893)
Observations of Mars, 1892.
Astronomical journal. V. 12. N. 288. P. 185-188.
1893AJ_____12__185H
Campbell W.W. (1895)
Micrometer-observations of the satellites of Mars.
Astronomical journal. V. 15. N. 337. P. 1-4.
1895AJ_____15____1C
Newall M.A. (1895)
Micrometer measurements of Phobos, the inner satellite of Mars
during the opposition of 1894.
Monthly notices of the Royal astronomical society.
V. 55. N. 7. P. 348-353.
1895MNRAS__55__348N
Royal observatory, Greenwich (1895)
Micrometric Observations of the Satellites of Mars made
with the 28-inch Refractor, 1894.
Micrometric Measures of Planets and Satellites. 1894 and 1895.
Royal observatory, Greenwich. P. 155-155.
1895ses__book__155R
Barnard E.E. (1897)
Measures of the diameters of Mars and the positions of his satellites in 1894.
Astronomical journal. V. 17. N. 403. P. 145-147.
1897AJ_____17__145B
Kostinsky S. (1897)
Sur les photographies du satellite exterieur de Mars (en russe).
Bulletin de l'Academie Imperiale des sciences de St.-Petersbourg.
V serie. V. 7. N. 4. P. 399.
1897BAISP___7__399K
Schaeberle J.M. (1897)
Observations of the satellites of Mars during the opposition of 1896.
Astronomical journal. V. 17. N. 399. P. 113-114.
1897AJ_____17__113S
Hussey W.J. (1898)
Observations of the satellites of Mars.
Astronomical journal. V. 18. N. 424. P. 122-123.
1898AJ_____18__122H
Kostinsky S. (1898)
Deux positions du satellite exterieur de Mars.
Astronomische Nachrichten. V. 145. N. 3469. P. 203-204.
1898AN____145__203K
Struve H. (1898)
Beobachtungen der Marstrabanten in Washington, Pulkowa und Lick-observatory.
Memoires de L'Academie Imperiale des sciences de St.-Petersbourg.
VIII serie. Classe Physico-mathematique. St.-Petersbourg.
V. 8. N. 8. P. 1-73.
1898MAISP___8____1S
Brown S.J. (1899)
Orbits of the satellites of Mars from observations
made at the U.S. Naval observatory and the Lick observatory, 1894-6.
Astronomical journal. V. 20. N. 367. P. 81-90.
1899AJ_____20___81B
Aitken R.G. (1909)
Observations of the satellites of Mars, Saturn and Uranus.
Lick Observatory Bulletin. University of California.
V. 5. N. 172. P. 169-173.
1909LicOB___5__169A
Wirtz C. (1909)
Trabantenbeobachtungen in den Jahren 1881-1896, im wesentlichen
ausgefuhrt von H.Kobold, bearbaitet von C.W.Wirtz.
Annalen der Kaiserlichen Universitats-Sternwarte in Strassburg.
V. 3. P 5-5.
1909AKUSS___3____5W
Barnard E.E. (1910)
Observations of the satellites of Mars.
Astronomical journal. V. 26. N. 608. P. 69-70.
1910AJ_____26___69B
Kostinsky S. (1910)
Sur les photographies des satellites de Mars.
Astronomische Nachrichten. V. 183. N. 4369. P. 7-10.
1910AN____183____7K
USNO (1911)
Equatorial observations, 1893-1907.
Publications of U.S.Naval Observatory, 2nd Series. USNO. Washington D.C.
V. 6. P. A3-A5.
1911PUSNO___6___A1S
Wirtz C. (1911)
Beobachtungen von Satelliten.
Annalen Kaiserlichen Universitats-Sternwarte Strassburg Karlsruhe.
V. 4. P. 292-292.
1911AKUSS___4__292W
Hall A. (1913)
Observations of the satellites of Mars.
Astronomical journal. V. 27. N. 645. P. 163-169.
1913AJ_____27__163H
Kostinsky S. (1913)
Observations photographiques des satellites de Mars
faites en 1909 a l'astrographe normal de Poulkovo.
Mitteilungen des Nikolai-Hauptsternwarte zu Pulkovo.
V. 5. N. 59. P. 149-176.
1913IzNic___5__149K
1913MNHP____5__149K
Burton H.D., Hall A. (1923)
Observations of the satellites of Mars, 1911-22.
Astronomical journal. V. 35. N. 830. P. 113-115.
1923AJ_____35__113B
Jeffers H.M. (1925)
Observations of the satellites of Mars.
Lick Observatory Bulletin. V. 12. N. 360. P. 4-8.
1925LicOB_360____4J
Lamson E.A., Hall A., Bower E.C. (1926)
Corrections to the elements of the satellites of Mars.
Astronomical journal. V. 37. N. 873. P. 69-74.
1926AJ_____37___69L
Hall A., Burton H.D. (1929)
Corrections to the elements of the satellites of Mars.
Astronomical journal. V. 39. N. 928. P. 151-154.
1929AJ_____39__151H
USNO (1929)
Observations of Satellites: Satellites of Mars.
Publications of U.S.Naval Observatory, 2nd Series. USNO. Washington D.C.
V. 12. P 81-89.
1929PUSNO__12___92S
USNO (1954)
Observations of satellites made with the 26-inch equatorial
of the U.S.Naval observatory. 1928-47.
Publications of the U.S.Naval Observatory, 2nd Series. USNO. Washington D.C.
V. 17. N. 3. P. 125-126.
1954PUSNO__17___94S
Karimova D.K., Kholopov P.N. (1969)
Positions of Deimos during the great opposition of Mars in 1967.
Astronomitcheskij tsircular izdavaemyj Buro astronomitcheskich
soobshchenij Academii nauk USSR. Moscow. N. 530. P. 5-6.
1969ATsir_530____5K
Kovalenko N.D., Telnyuk-Adamchuk V.V. (1969)
Observations of Mars and Deimos by the astrograph of Kiev
university observatory.
Vestnik Kievskogo universiteta. Seria Astronomija. Kiev university. Kiev.
N. 11. P. 129-130.
1969VKUA___11__129K
Rizvanov N.G., Shchukin E.M. (1969)
Photographic observations of Mars and Deimos.
Izvestija Astronomitsheskoi Engelgardtovskoj Observatorii.
Kazan University. Kazan.
N. 37. P. 153-154.
1969IzAOE__37__153R
Biesbroeck G Van (1970)
Measures of the satellites of Uranus and Mars.
Communications of Lunar and Planetary Laboratory.
V. 8. P. 179-188.
1970CoLPL___8__179B
Deutsch A.N. (1970)
Photographic Observations of the Satellites of Mars at the Pulkovo Observatory.
Izvestiya glavnoi astronomicheskoi observatorii. Leningrad.
N. 185. P. 103-109.
1970IzPul_185__103D
Fatchikhin N.V. (1970)
Photographic Observations of Deimos Made with the Pulkovo Normal
Astrograph During the Opposition of Mars in 1967.
Izvestiya glavnoi astronomicheskoi observatorii. Leningrad.
N. 185. P. 110-116.
1970IzPul_185__110F
Onegina A.B., Sereda E.M. (1971)
Photograpnic observations of Deimos at the main astronomical observatory
of the ukrainian academy of scienses in 1967.
Bulleten' instituta teoreticheskoi astronomii (Institut for theoretical
astronomy, Bulletin). Leningrad. V. 12. N. 8. P. 732-732.
1971BITA___12__732O
Pascu D. (1972)
Ph. D. Thesis. University of Virginia.
1972PhDT_________1P
Bashtova L.I., Rakhimov A.G. (1973)
The precise positions of Mars and its satellite Deimos
from the photographic observations in Tashkent.
Tsirkular of the astronomical institute Tashkent. Tashkent.
N. 42(389). P. 35-38.
1973TITas__42___35B
Tel'nyk-Adamchuk V.V., Berezovsky O.A., Kovalenko N.D. (1973)
Photograph of Mars and its satellites during the opposition in 1971.
Vestnik Kievskogo Universiteta, Astronomia. N. 15. P. 47-51.
1973VKUA___15___47T
Khatisov A.S., Salukvadze G.N. (1974)
Relative positions of Phobos and Deimos.
Bulleten Abastumanskoj astrofizitsheskoj observatorii. Tbilisi.
N. 45. P. 71-74.
1974AbaOB__45___71K
Khatisov A.Sh., Salukvadze G.N. (1975)
Results of positional observations of the Martian satellites.
Abastumanskaia Astrofizicheskaia Observatoriia, Biulleten', In Russian.
N. 46. P. 217-224.
1975AbaOB__46__217K
Kiseleva T.P. (1976)
Position observations of satellites of Mars in 1973.
Izwestija Glavnoj astronomiceskoj observatorii v Pulkove.
N. 194. P. 127-129.
1976IzPul_194__127K
Sereda E.M., Izhakevich E.M. (1978)
Photographic positional observations of Mars and Deimos with 400 mm
astrograph of the main astronomical observatory of the ukrainian
academy of sciences.
Astrometrija i Astrophisika. Naukova dumka. Kiev.
N. 36. P. 72-81.
1978AAfz___36___72S
Kovalenko N.D. Makarenko I.F., Mandzhos A.V., Tel'nyk-Adamchuk V.V. (1980)
Results of the position observations of Mars and its satellites during
the opposition in 1973.
Vestnik Kievskogo Universiteta, Astronomia.
N. 22. P. 78-85.
1980VKUA___22___78K
Sereda E.M. (1981)
Photographic position observations of Mars and Deimos at the Main
Astronomical Observatory of Ukrainean Academy of Science in 1975-1976.
Scientific paper deposited in All-russian institute of scientific
and technical information.
N. 3868-81. P. 1-11.
1981PDRII3868_____S
Major S.P., Sereda E.M. (1983)
Position photographic observations of Mars and Deimos at the Main
Astronomical Observatory of Ukrainean Academy of Science in 1977-1978.
Scientific paper deposited in All-russian institute of scientific
and technical information
N. 6759-83. P. 1-29.
1983PDRII6759____1M
Tolbin S.V. (1985)
Photographic positions of Mars and its satellites obtained with
the 26-arcsec refractor at Pulkovo in 1982 (In Russian).
Pulkovo, Glavnaia Astronomicheskaia Observatoriia, Izvestiia.
N. 203. P. 44-49.
1985IzPul_203___44T
Pascu D. (1988) Private Communication.
Morley T.A. (1989)
A catalogue of ground-based astrometric observations of the Martian
satellites, 1877-1982.
Astronomy and Astrophysics Supplement Series. V. 77. N. 2. P. 209-226.
1989A&AS___77__209M
Informations.
relative to: 1 - Phobos relative to Mars : 2212,
2 - Deimos relative to Mars : 2600,
3 - Deimos relative to Phobos: 100
reference frame: astrometric
centre of frame: topocentre
epoch of equinox: 1 - true equator and equinox of date
2 - mean equator and equinox of B1900
3 - mean equator and equinox of B1950
4 - mean equator and equinox of J2000
time scale: UTC
reduction: 0 - not corrected or no information
1 - corrected for phase,
2 - corrected for differential refraction
3 - both 1 and 2
coordinates: 0 - separation and/or position angle
1 - X, Y
2 = Delta alpha, Delta delta
diff. refraction: 0 - not corrected or no information
1 - corrected for phase,
2 - corrected for differential refraction
3 - both 1 and 2
receptor: see observer code
telescope: see observer code
observers: observer code:
1 - Hall, Newcomb, Harkness. Telescope: 26-inch. Recepteur: micrometer.
2 - Kostinsky S. Telescope: 13-inch normal astrograph.
Recepteur: photographic.
3 - Common A A. Telescope: 18-inch (silver) reflector,
powers 170 and 272.
Telescope: 36-inch reflector, powers 220, 240 and 380.
Telescope: 3-foot Reflector.
Recepteur: micrometer.
4 - Keeler J E. Telescope: 36-inch equatorial. Recepteur: micrometer.
5 - Campbell W W. Telescope: 36-inch equatorial. Recepteur: micrometer.
6 - Telescope: 26-inch equatorial. Recepteur: micrometer.
7 - Maunder. Telescope: 12 3/4-inch great equatorial. Recepteur: micrometer.
8 - Newall M A. Telescope: 25-inch refractor. Recepteur: micrometer.
9 - Hussey W J. Telescope: 36-inch refractor, magnifying - 520.
Recepteur: micrometer.
10 - Schaeberle J M. Telescope: magnifying power - 320.
Telescope: 26-inch normal equatorial, magnifying power - 383.
Recepteur: micrometer.
11 - Frederickson
12 - Rice H.
13 - Hall A. Telescope: 26-inch equatorial. Recepteur: micrometer.
14 - Barnard E E. Telescope: 36-inch. Recepteur: micrometer.
15 - Observers: Aitken R G, Merill P W, Young R, Olivier C P.
Telescope: 36-inch refractor, power - 270.
Telescope: 40-inch.
Recetreur: micrometer.
16 - Burton H.E.
17 - Observers: Hall A, Bower E C. Telescope: 26-inch equatorial.
Recepteur: micrometer.
18 - Observer: Jeffers H.M. Telescope: 36-inch refractor, power - 270.
Recetreur: micrometer.
19 - USNO. Observators: R., Br., Fk. Telescope: 26-inch equatorial.
Recepteur: Clarc micrometer, Repsold micrometer.
20 - Observers: Hall Jr, Lyons U S, Burton H E, Wylie L R,
Browne W M, Smith J L, Raynsford G M.
Telescope: 26-inch refractor.
21 - Wirtz C., Winnecke, Kobold. Telescope: 49-cm refractor.
Recepteur: micrometer.
22 - Richardson R.
23 - Pritchett C W. Telescope: 12 1/4 -inch refractor. Recepteur: micrometer.
24 - Pascu D.
25 - Kuiper G.P., Biesbroeck G Van. Telescope: 82-inch reflector.
Recepteur: photographic.
26 - Observer: Deutsch A N.
Observer: Fatchikhin N V. Telescope: Normal astrograph.
Recepteur: photographic.
27 - Observer: Tolbin S V. Telescope: 26 inch refractor.
Recepteur: Photographic.
28 - Observers: Onegina A.B., Sereda E.M., Ishakevich E.M.
Telescope: Astrograph - 400 mm. Recepteur: photographic.
29 - Observers: Rizvanov N G, Shchukin E M. Telescope: 16-inch refractor.
Recepteur: photographic.
30 - Observers: Kovalenko N D, Telnyk-Adamchuk V V.
Telescope: 8-inch astrograph. Receteur: Phographic.
31 - Copeland R, Lohse J G. Telescope: 15.06-inch refractor,
power 229. Recepteur: micrometer.
32 - Observers: Kiseleva T P. Telescope: refractor, D=26 inch.
Recepteur: photographic.
33 - Observers: Khatisov A S, Salukvadze G N. Recepteur: photographic.
34 - Pritchett H S. Telescope: 12 1/4 -inch refractor. Recepteur: micrometer.
35 - Observers: Bashtova L I, Rakhimov A G. Telescope: normal astrograph,
F=3.4 m, D=33 cm. Recepteur: photographic.
36 - Waldo L. Telescope: 15-inch Merz Equatorial. Recepteur: micrometer.
37 - Pickering E.C., Wendell O. C. Telescope: 15-inch Merz Equatorial,
focal length 683 cm. Recepteur: micrometer.
38 - Plummer W. Telescope: 12-inch Grubb equatoreal, power 125.
Recepteur: micrometer.
39 - Wagner A.
40 - Erck W. Recepteur: Micrometer. Power: 300. Aperture: 4.5 diameter.
41 - Henry MM. Telescope: Objectif de 14 puces. Grossissement employe: 250.
Recepteur: micrometer.
42 - Karirova D K, Kholopov P N. Telescope: AZT-2, D=70 cm.
Recepteur: photographic.
43 - Struve H. Telescopes:
in Washington - la moitie de l'oculaire de 400 grondissement etait
couvert par un verre colore a travers duquel on pouvait juste
reconnaitre le fil micrometrique,
Pulkowo - 30-inch refractor,
Lick - refractor.
44 - Renze F.
data included in standard data file: no
Comments.
1. Contradiction in observations by observatory 135 - Kasan:
In the publication we see that the phase corrections
were not done and in the catalogue Morley
index 1 shows that they were done. Data in the catalogue
are the sames as in publication.
Format.
1. Acceptance code: 1 Accepted data, 0 - Deleted (bad quality)
2. Opposition number: 1 - 1877, ..., 50 - 1982
3. Year of the moment of observation
4. Month of the moment of observation
5. Day of the moment of observation with decimals
6. (ET-UTC) in tenths of second
7. Observer code
8. Observatory N
9. Observed body: 1 - Phobos relative to Mars
2 - Deimos relative to Mars
3 - Deimos relative to Phobos
10. Obs. type: 0 - separation and/or position angle
1 - differential R.A.(*cosine(dec.))
and/or differential declination
2 - Delta a or Delta d, see Note 0 .
11. Presence flag for 1st value of pair:
0 - value absent
1 - value present
12. Presence flag for 2st value of pair:
0 - value absent
1 - value present
13. Ref. system: 1 - true equator and equinox of date
2 - mean equator and equinox of B1900
3 - mean equator and equinox of B1950
4 - mean equator and equinox of J2000
14. 1st value of observation, seconds of arc (0.0 if absent), see note 4
15. 2st value of observation, seconds of arc or degrees if position angle
(0.0 if absent), see note 4
16. 1-sigma noise in 1st value of pair (seconds of arc)
(0.0 if absent), see notes 3, 4
17. 1-sigma noise in 2nd value of pair (seconds of arc)
(0.0 if absent), see notes 3, 4
18. Observation correction (reduction) code:
0 - not corrected or no information
1 - corrected for phase,
2 - corrected for differential refraction
3 - both 1 and 2
Notes:
Note 0. Obs. type 2. They are rectangular coordinates in a frame
whose reference axis is orientated at the angle to celestial
north. These types of measurements were made parallel and
normal to the direction of the Mars rotation axis.
The measurements are denoted by Delta a and Delta d.
The units are arcseconds.
The position angle of the axis 'Delta a' is denoted
by 'theta'. The axis 'Delta d' is orientated at an angle
'theta - 90 deg' to celestial north. See also Note 4.
Note 1. The units for the observations are seconds of arc except for
position angle when the unit is degrees east of north
in the range 0 - 360.
Note 2. The units for the observation noise are always seconds of arc.
For a position angle p, the noise refers to the product of the
error in p and the separation angle.
Note 3. In the ESOC system, when the noise is greater or equal to 99.0
the corresponding observation is of bad quality and is not used
in the determination of the orbit but its residual is computed
and printed.
Note 4. When the observation is either Delta a or Delta d the columns
normally used for the complementary observation are used to
store the position angle, theta. Also, the columns normally
used to store the noise of the complementary observation
contain 0.0.
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ET-UTC Body
N opp. Observer Ref.s.
Year Month Day Observatory Sigma 1 Sigma 2
Accept. Presence Corr.
code v1 v2 Value 1 Value 2 code
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