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
2007-02-26 13:49:09 C 09 39 51.04 +33 56 24.1 r 379
2007-02-26 13:51:15 C 09 39 50.89 +33 56 25.8 r 379
2007-02-26 13:55:26 C 09 39 50.65 +33 56 29.3 r 379
2007-02-26 13:59:38 C 09 39 50.40 +33 56 32.1 r 379
2007-02-26 20:46:20 C 09 39 26.667 +34 01 43.52 r A30
2007-02-26 20:48:33 C 09 39 26.529 +34 01 45.21 r A30
2007-02-26 20:50:57 C 09 39 26.378 +34 01 47.09 r A30
2007-02-26 20:53:33 C 09 39 26.215 +34 01 49.11 r A30
2007-02-27 04:37:10 C 09 38 59.23 +34 07 44.7 d 712
2007-02-27 04:49:50 C 09 38 58.48 +34 07 53.6 d 712
2007-02-27 04:59:23 C 09 38 57.84 +34 08 01.7 d 712
2007-02-27 05:09:19 C 09 38 57.32 +34 08 08.6 d 712
2007-02-28 03:53:15 C 09 37 39.80 +34 24 44.6 d 712
2007-02-28 04:16:14 C 09 37 38.45 +34 25 01.7 d 712
2007-02-28 04:26:40 C 09 37 37.88 +34 25 09.1 d 712
2007-03-04 06:01:14 C 09 32 39.04 +35 26 12.3 o 644
2007-03-04 06:02:57 C 09 32 38.96 +35 26 13.5 o 644
2007-03-04 06:31:19 C 09 32 37.54 +35 26 28.9 o 644
2007-03-04 06:33:02 C 09 32 37.46 +35 26 29.9 o 644
2007-03-04 07:04:58 C 09 32 35.84 +35 26 47.0 o 644
2007-03-04 07:06:42 C 09 32 35.78 +35 26 48.1 o 644
2007-03-07 12:06:26 C 09 29 22.33 +36 04 01.9 r 379
2007-03-07 12:08:32 C 09 29 22.26 +36 04 02.7 r 379
2007-03-07 12:10:37 C 09 29 22.16 +36 04 03.7 r 379
2007-03-07 12:14:49 C 09 29 21.97 +36 04 05.4 r 379
2007-03-07 12:19:02 C 09 29 21.82 +36 04 07.5 r 379
2007-03-08 06:41:39 C 09 28 40.39 +36 11 42.0 r H45
2007-03-08 06:43:01 C 09 28 40.33 +36 11 42.6 r H45
2007-03-08 06:44:47 C 09 28 40.26 +36 11 43.3 r H45
2007-03-08 06:46:37 C 09 28 40.19 +36 11 44.1 r H45
2007-03-08 06:47:41 C 09 28 40.15 +36 11 44.4 r H45
2007-03-09 20:44:31 C 09 27 23.50 +36 25 54.1 r J94
2007-03-09 21:15:22 C 09 27 22.28 +36 26 06.3 r J94
2007-03-09 21:47:15 C 09 27 21.30 +36 26 16.4 r J94
2007-03-10 04:33:46 C 09 27 08.60 +36 28 40.4 r 703
2007-03-10 04:45:35 C 09 27 08.17 +36 28 44.4 r 703
2007-03-10 04:57:31 C 09 27 07.81 +36 28 48.5 r 703
2007-03-10 05:09:31 C 09 27 07.38 +36 28 52.3 r 703
2007-03-10 22:18:02 C 09 26 36.03 +36 34 26.6 c A24
2007-03-10 22:19:31 C 09 26 35.99 +36 34 26.9 c A24
2007-03-10 22:59:05 C 09 26 34.71 +36 34 39.1 c A24
2007-03-10 23:00:33 C 09 26 34.67 +36 34 39.6 c A24
2007-03-11 20:29:00 C 09 25 58.79 +36 41 08.3 o 639
2007-03-11 20:38:50 C 09 25 58.50 +36 41 11.0 o 639
2007-03-11 20:50:07 C 09 25 58.17 +36 41 14.2 o 639
2007-03-11 20:56:15 C 09 25 58.00 +36 41 15.9 o 639
2007-03-11 23:10:09 C 09 25 54.03 +36 41 55.0 c A24
2007-03-11 23:11:36 C 09 25 53.99 +36 41 55.5 c A24
2007-03-11 23:50:47 C 09 25 52.86 +36 42 06.3 c A24
2007-03-11 23:52:13 C 09 25 52.80 +36 42 06.5 c A24
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)