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
2002-02-12 10:48:04 C 09 56 39.97 +27 49 06.1 14.9 c 644
2002-02-12 11:04:52 C 09 56 38.61 +27 49 30.1 14.8 c 644
2002-02-12 11:21:30 C 09 56 37.23 +27 49 53.9 14.6 c 644
2002-02-12 12:53:04 C 09 56 31.46 +27 52 06.4 379
2002-02-12 12:57:10 C 09 56 31.13 +27 52 12.9 379
2002-02-12 13:02:33 C 09 56 30.67 +27 52 20.5 379
2002-02-12 13:08:24 C 09 56 30.24 +27 52 28.9 379
2002-02-12 13:14:34 C 09 56 29.69 +27 52 38.2 379
2002-02-12 13:20:39 C 09 56 29.21 +27 52 46.6 379
2002-02-14 20:14:35 C 09 52 13.61 +29 08 52.0 c 127
2002-02-14 20:20:21 C 09 52 13.16 +29 09 00.0 c 127
2002-02-14 20:27:10 C 09 52 12.63 +29 09 09.0 c 127
2002-02-15 01:46:55 C 09 51 48.51 +29 16 14.6 m 450
2002-02-15 02:14:30 C 09 51 46.35 +29 16 51.4 m 450
2002-02-15 02:42:06 C 09 51 44.15 +29 17 28.3 m 450
2002-02-16 17:49:16 C 09 48 47.19 +30 07 11.4 d 557
2002-02-16 19:04:12 C 09 48 41.53 +30 08 45.1 d 557
2002-02-16 20:33:30 C 09 48 34.68 +30 10 36.2 d 557
2002-02-16 21:15:15 C 09 48 31.55 +30 11 28.4 c 198
2002-02-16 21:17:21 C 09 48 31.40 +30 11 30.9 c 198
2002-02-16 21:20:51 C 09 48 31.12 +30 11 35.2 c 198
2002-02-16 21:29:56 C 09 48 30.42 +30 11 46.2 c 198
2002-02-16 21:57:43 C 09 48 28.18 +30 12 20.2 d 557
2002-02-16 23:03:51 C 09 48 23.04 +30 13 41.1 d 557
2002-02-18 01:18:45 C 09 46 27.07 +30 44 58.9 c 240
2002-02-18 01:21:53 C 09 46 26.83 +30 45 02.6 c 240
2002-02-18 01:27:09 C 09 46 26.43 +30 45 08.6 c 240
2002-02-18 02:05:38 C 09 46 23.54 +30 45 52.8 c 240
2002-02-18 02:07:46 C 09 46 23.38 +30 45 55.2 c 240
2002-02-18 05:58:00 C 09 46 07.60 +30 50 28.0 15.6 c 704
2002-02-18 06:22:14 C 09 46 05.75 +30 50 56.0 16.3 c 704
2002-02-18 06:44:44 C 09 46 04.00 +30 51 22.1 16.2 c 704
2002-02-18 07:05:44 C 09 46 02.39 +30 51 46.3 16.0 c 704
2002-02-21 06:48:04 C 09 41 01.93 +32 08 58.2 m 446
2002-02-21 07:36:21 C 09 40 58.50 +32 09 45.9 m 446
2002-02-21 09:17:09 C 09 40 51.37 +32 11 24.8 m 446
2002-02-21 18:55:01 C 09 40 14.36 +32 20 49.0 c 240
2002-02-21 19:01:19 C 09 40 13.93 +32 20 55.5 c 240
2002-02-21 19:03:25 C 09 40 13.79 +32 20 57.6 c 240
2002-02-21 20:23:21 C 09 40 08.29 +32 22 16.1 c 113
2002-02-21 20:34:22 C 09 40 07.54 +32 22 27.3 c 113
2002-02-21 20:47:28 C 09 40 06.62 +32 22 40.3 c 113
2002-02-22 12:57:09 C 09 39 03.18 +32 38 11.2 c 355
2002-02-22 12:59:09 C 09 39 03.04 +32 38 13.3 c 355
2002-02-22 13:02:21 C 09 39 02.79 +32 38 16.7 c 355
2002-02-22 13:06:29 C 09 39 02.53 +32 38 20.4 c 355
2002-02-23 06:52:05 C 09 37 54.00 +32 54 44.0 16.2 c 704
2002-02-23 07:43:20 C 09 37 50.53 +32 55 29.6 16.2 c 704
2002-02-23 08:07:16 C 09 37 48.92 +32 55 50.9 15.6 c 704
2002-02-25 01:51:14 C 09 35 16.74 +33 31 44.3 m 450
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)