3103 Eger (1982 BB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3541833241 ± 2.00e+00
Semi-major axis (a)1.4039472551 AU ± 3.00e+00
Inclination (i)20.93071887° ± 4.00e+00
Long. of Asc. Node (Ω)129.73173744° ± 5.00e+00
Arg. of Perihelion (ω)254.10494834° ± 6.00e+00
Mean Anomaly (M)181.12184640° ± 8.33e-05
Mean Motion (n)0.5924969077°/day ± 1.90e+00
Perihelion dist (q)0.90669255 AU ± 3.41e+00
Aphelion dist (Q)1.90120196 AU ± 4.94e+00
Orbital Period1.66351296 yr ± 5.33e+00
NGA Modelr2
A24.86502687e-06 AU/d²
Physical Parameters
H (abs. magnitude)15.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.341″
Uncertainty0
Orbit TypeApollo
MOID0.078006 AU
Observations Used7901
Radar Obs Used4
Gaia Obs Used108
Oppositions14
Arc Total1982-2017
First Observation Used1982-02-02
Last Observation Used2026-04-05
Observations (11858)
Date Type RA Dec Mag Band Observatory
2022-02-08 14:33:52 s 1 -197348.90 2 +192942.08 2360.0 C57
2022-02-08 14:43:52 S 10 52 09.463 +24 22 01.42 V C57
2022-02-08 14:43:52 s 1 -197474.48 5 +192304.98 4110.0 C57
2022-02-08 14:53:52 S 10 52 08.664 +24 22 16.97 V C57
2022-02-08 14:53:52 s 1 -197598.92 6 +191666.76 400.0 C57
2022-02-08 15:03:52 S 10 52 07.838 +24 22 33.17 V C57
2022-02-08 15:03:52 s 1 -197722.21 9 +191027.42 1210.0 C57
2022-02-08 15:13:52 S 10 52 06.996 +24 22 48.32 V C57
2022-02-08 15:13:52 s 1 -197844.36 1 +190386.96 6520.0 C57
2022-02-08 15:23:52 S 10 52 06.154 +24 23 04.70 V C57
2022-02-08 15:23:52 s 1 -197965.34 7 +189745.38 6310.0 C57
2022-02-08 15:33:52 S 10 52 05.338 +24 23 21.30 V C57
2022-02-08 15:33:52 s 1 -198085.17 2 +189102.68 570.0 C57
2022-02-08 15:43:52 S 10 52 04.471 +24 23 37.75 V C57
2022-02-08 15:43:52 s 1 -198203.83 1 +188458.86 9260.0 C57
2022-02-08 15:53:52 S 10 52 03.665 +24 23 53.66 V C57
2022-02-08 15:53:52 s 1 -198321.32 0 +187813.93 2370.0 C57
2022-02-08 16:03:52 S 10 52 02.933 +24 24 09.25 V C57
2022-02-08 16:03:52 s 1 -198437.63 4 +187167.87 9870.0 C57
2022-02-08 16:13:52 S 10 52 02.078 +24 24 24.95 V C57
2022-02-08 16:13:52 s 1 -198552.76 7 +186520.69 1750.0 C57
2022-02-08 16:23:52 S 10 52 01.243 +24 24 41.36 V C57
2022-02-08 16:23:52 s 1 -198666.71 6 +185872.39 7990.0 C57
2022-02-08 16:33:52 S 10 52 00.449 +24 24 58.28 V C57
2022-02-08 16:33:52 s 1 -198779.47 5 +185222.98 8560.0 C57
2022-02-08 16:43:52 S 10 51 59.534 +24 25 13.26 V C57
2022-02-08 16:43:52 s 1 -198891.04 0 +184572.44 3450.0 C57
2022-02-08 16:53:52 S 10 51 58.699 +24 25 29.10 V C57
2022-02-08 16:53:52 s 1 -199001.40 6 +183920.79 2620.0 C57
2022-02-08 17:03:52 S 10 51 57.845 +24 25 44.80 V C57
2022-02-08 17:03:52 s 1 -199110.56 7 +183268.01 6070.0 C57
2022-02-08 17:13:52 S 10 51 56.988 +24 26 01.03 V C57
2022-02-08 17:13:52 s 1 -199218.51 9 +182614.12 3760.0 C57
2022-02-08 17:23:52 S 10 51 56.215 +24 26 17.27 V C57
2022-02-08 17:23:52 s 1 -199325.25 7 +181959.10 5680.0 C57
2022-02-08 17:33:52 S 10 51 55.375 +24 26 32.68 V C57
2022-02-08 17:33:52 s 1 -199430.77 6 +181302.97 1810.0 C57
2022-02-08 17:43:52 S 10 51 54.607 +24 26 48.91 V C57
2022-02-08 17:43:52 s 1 -199535.07 1 +180645.72 2120.0 C57
2022-02-08 17:53:52 S 10 51 53.738 +24 27 04.18 V C57
2022-02-08 17:53:52 s 1 -199638.13 7 +179987.35 6590.0 C57
2022-02-08 18:03:52 S 10 51 52.910 +24 27 20.99 V C57
2022-02-08 18:03:52 s 1 -199739.96 9 +179327.86 5190.0 C57
2022-02-08 18:13:52 S 10 51 52.061 +24 27 36.36 V C57
2022-02-08 18:13:52 s 1 -199840.56 1 +178667.25 7920.0 C57
2022-02-08 18:23:52 S 10 51 51.223 +24 27 53.32 V C57
2022-02-08 18:23:52 s 1 -199939.90 9 +178005.53 4740.0 C57
2022-02-08 18:33:52 S 10 51 50.369 +24 28 08.40 V C57
2022-02-08 18:33:52 s 1 -200038.00 8 +177342.68 5630.0 C57
2022-02-08 18:43:52 S 10 51 49.526 +24 28 24.28 V C57
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1986-07-18 07:50:00 202602 6 Hz 2380 -1 -1
1986-07-18.326389 20260200 600 Hz 2380 251 251
1996-07-29 09:10:00 469654 5 Hz 8510 -14 -14
1996-07-29 13:00:00 133166634 10 us 8510 -14 -14
1996-07-29.381944 46965400 500 Hz 8510 253 253
1996-07-29.541667 13316663400 10000 us 8510 253 253
1996-07-30 10:50:00 410012.2 5 Hz 8510 -14 -14
1996-07-30.451389 41001220 500 Hz 8510 253 253
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)