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
1999-04-09 09:54:20 C 14 59 48.46 +24 41 02.2 17.9 a 704
1999-04-09 10:21:38 C 14 59 46.93 +24 41 21.7 18.1 a 704
1999-04-09 10:48:35 C 14 59 45.64 +24 41 39.9 18.1 a 704
1999-04-09 11:15:38 C 14 59 44.04 +24 41 58.6 18.1 a 704
1999-04-13 23:02:03 C 14 53 47.02 +25 54 25.2 z 610
1999-04-13 23:10:02 C 14 53 46.55 +25 54 30.1 z 610
1999-04-13 23:14:02 C 14 53 46.31 +25 54 32.6 z 610
1999-04-13 23:18:03 C 14 53 46.07 +25 54 35.1 z 610
1999-04-13 23:26:02 C 14 53 45.59 +25 54 40.0 z 610
1999-04-20 07:05:39 C 14 44 17.50 +27 20 16.9 17.8 a 704
1999-04-20 07:26:55 C 14 44 16.03 +27 20 28.3 17.4 a 704
1999-04-20 07:48:24 C 14 44 14.62 +27 20 39.2 17.8 a 704
1999-04-20 08:09:56 C 14 44 13.26 +27 20 50.8 18.0 a 704
1999-04-20 08:31:32 C 14 44 11.57 +27 20 58.9 17.6 a 704
1999-05-09 23:59:35 C 14 12 11.92 +29 09 56.6 c 118
1999-05-10 00:13:53 C 14 12 11.00 +29 09 55.8 c 118
1999-05-14 03:47:32 C 14 06 02.73 +29 01 04.7 18.1 a 704
1999-05-14 04:08:53 C 14 06 01.40 +29 01 02.7 18.4 a 704
1999-05-14 04:30:14 C 14 06 00.15 +29 00 58.8 19.1 a 704
1999-05-14 04:51:32 C 14 05 58.71 +29 00 55.9 18.3 a 704
1999-05-14 05:12:46 C 14 05 57.43 +29 00 53.2 18.3 a 704
1999-05-21 22:49:03 C 13 55 58.80 +28 17 24.1 c 118
1999-05-21 22:53:23 C 13 55 58.60 +28 17 22.9 c 118
1999-06-04 07:07:47 C 13 44 22.45 +25 57 00.6 18.6 a 704
1999-06-04 07:19:12 C 13 44 22.19 +25 56 53.7 18.8 a 704
1999-06-04 07:30:38 C 13 44 21.82 +25 56 47.9 19.0 a 704
1999-06-04 07:42:10 C 13 44 21.58 +25 56 41.5 19.0 a 704
1999-06-07 07:40:39 C 13 42 47.37 +25 16 23.3 18.7 a 704
1999-06-07 07:54:46 C 13 42 47.04 +25 16 15.0 19.3 a 704
1999-06-07 08:08:13 C 13 42 46.88 +25 16 08.2 19.6 a 704
1999-06-07 08:21:40 C 13 42 46.47 +25 15 59.7 19.7 a 704
1999-06-07 08:35:07 C 13 42 46.38 +25 15 51.2 19.4 a 704
2001-04-23 11:17:52 C 19 31 37.55 +03 46 30.5 670
2001-04-23 11:40:09 C 19 31 39.09 +03 46 38.9 670
2001-04-27 09:35:59 C 19 38 20.21 +04 26 31.0 17.3 c 704
2001-04-27 09:54:53 C 19 38 21.49 +04 26 39.3 18.5 c 704
2001-04-27 10:13:48 C 19 38 22.81 +04 26 46.6 17.7 c 704
2001-04-27 10:32:54 C 19 38 24.11 +04 26 55.1 17.4 c 704
2001-05-24 01:27:50 C 20 22 08.01 +09 02 29.3 113
2001-05-24 01:30:02 C 20 22 08.13 +09 02 30.5 113
2001-05-24 01:32:15 C 20 22 08.30 +09 02 31.3 113
2001-05-24 01:34:30 C 20 22 08.40 +09 02 31.8 113
2001-05-24 01:36:42 C 20 22 08.56 +09 02 33.0 113
2001-06-17 01:13:35 C 21 02 08.24 +12 09 59.9 15.9 939
2001-06-17 01:27:23 C 21 02 09.25 +12 10 02.3 15.7 939
2001-06-17 01:38:16 C 21 02 10.06 +12 10 04.9 15.5 939
2001-06-19 08:55:25 C 21 06 24.69 +12 19 18.0 14.9 c 704
2001-06-19 09:13:04 C 21 06 26.01 +12 19 20.2 14.2 c 704
2001-06-19 09:30:36 C 21 06 27.29 +12 19 23.5 14.4 c 704
2001-06-19 09:48:10 C 21 06 28.56 +12 19 25.9 14.1 c 704
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)