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
2002-02-25 02:16:16 C 09 35 15.10 +33 32 05.6 m 450
2002-02-25 02:41:20 C 09 35 13.52 +33 32 25.9 m 450
2002-03-03 03:25:19 C 09 27 39.76 +35 11 54.8 c 642
2002-03-03 03:35:04 C 09 27 39.32 +35 12 00.4 c 642
2002-03-03 03:38:06 C 09 27 39.18 +35 12 02.1 c 642
2002-03-04 18:33:09 C 09 25 58.83 +35 32 45.7 c 198
2002-03-04 18:42:04 C 09 25 58.45 +35 32 50.4 c 198
2002-03-04 18:47:51 C 09 25 58.21 +35 32 53.5 c 198
2002-03-04 18:52:04 C 09 25 58.03 +35 32 55.7 c 198
2002-03-04 20:01:59 C 09 25 54.96 +35 33 32.3 610
2002-03-04 20:06:59 C 09 25 54.75 +35 33 34.8 610
2002-03-04 20:12:00 C 09 25 54.54 +35 33 37.3 610
2002-03-04 20:17:00 C 09 25 54.32 +35 33 39.8 610
2002-03-04 20:21:59 C 09 25 54.11 +35 33 42.3 610
2002-03-04 20:26:59 C 09 25 53.90 +35 33 44.8 610
2002-03-04 20:32:00 C 09 25 53.69 +35 33 47.3 610
2002-03-04 20:48:42 C 09 25 52.93 +35 33 55.8 c 215
2002-03-04 20:49:23 C 09 25 52.92 +35 33 56.1 c 215
2002-03-04 20:49:56 C 09 25 52.89 +35 33 56.4 c 215
2002-03-05 06:11:03 C 09 25 30.06 +35 38 35.5 17.0 c 704
2002-03-05 06:32:35 C 09 25 29.12 +35 38 45.6 17.3 c 704
2002-03-05 06:54:06 C 09 25 28.18 +35 38 55.7 16.9 c 704
2002-03-05 07:15:47 C 09 25 27.23 +35 39 05.7 16.8 c 704
2002-03-05 07:37:24 C 09 25 26.40 +35 39 16.7 17.2 c 704
2002-03-07 13:34:21 C 09 23 27.69 +36 03 11.5 355
2002-03-07 13:38:05 C 09 23 27.58 +36 03 13.0 355
2002-03-07 13:41:04 C 09 23 27.46 +36 03 14.2 355
2002-03-07 13:43:59 C 09 23 27.37 +36 03 15.4 355
2002-03-10 18:43:48 C 09 21 10.40 +36 30 24.3 c 436
2002-03-10 19:03:27 C 09 21 09.80 +36 30 30.6 c 436
2002-03-10 19:27:59 C 09 21 09.12 +36 30 37.9 c 436
2002-03-10 20:56:00 C 09 21 06.62 +36 31 04.8 610
2002-03-10 21:01:01 C 09 21 06.47 +36 31 06.3 610
2002-03-10 21:06:01 C 09 21 06.33 +36 31 07.8 610
2002-03-10 21:11:00 C 09 21 06.18 +36 31 09.3 610
2002-03-10 21:16:00 C 09 21 06.04 +36 31 10.8 610
2002-03-10 21:21:00 C 09 21 05.89 +36 31 12.3 610
2002-03-10 21:26:01 C 09 21 05.75 +36 31 13.8 610
2002-03-16 20:48:17 C 09 18 30.94 +37 02 36.3 c 436
2002-03-20 03:10:24 C 09 17 58.73 +37 11 01.4 17.1 c 644
2002-03-20 03:44:04 C 09 17 58.53 +37 11 04.2 16.8 c 644
2002-03-20 04:14:35 C 09 17 58.35 +37 11 06.5 16.5 c 644
2002-03-31 03:19:59 C 09 20 08.00 +37 04 36.7 16.8 c 644
2002-03-31 04:50:33 C 09 20 09.43 +37 04 27.3 17.5 c 644
2002-03-31 05:20:43 C 09 20 09.92 +37 04 23.8 17.2 c 644
2002-03-31 22:24:46 C 09 20 29.48 +37 02 23.6 c 198
2002-03-31 22:29:59 C 09 20 29.54 +37 02 22.9 c 198
2002-03-31 22:32:34 C 09 20 29.57 +37 02 22.5 c 198
2002-04-03 04:50:30 C 09 21 40.27 +36 55 16.5 17.9 c 704
2002-04-03 05:34:34 C 09 21 41.46 +36 55 08.7 18.2 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)