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
2016-12-06 13:05:47 S 10 40 05.79 -09 13 40.3 L C51
2016-12-06 16:14:28 S 10 40 17.57 -09 11 45.4 L C51
2016-12-06 19:23:09 S 10 40 29.37 -09 09 50.8 L C51
2016-12-06 22:31:39 S 10 40 41.07 -09 07 55.9 L C51
2016-12-07 01:40:21 S 10 40 52.81 -09 05 59.6 L C51
2016-12-07 03:14:36 S 10 40 58.60 -09 05 01.6 L C51
2016-12-07 04:49:02 S 10 41 04.44 -09 04 03.9 L C51
2016-12-07 06:23:16 S 10 41 10.255 -09 03 05.11 L C51
2016-12-07 07:57:31 S 10 41 16.068 -09 02 07.08 L C51
2016-12-07 11:06:12 S 10 41 27.679 -09 00 10.22 L C51
2016-12-07 12:40:27 S 10 41 33.44 -08 59 12.3 L C51
2016-12-07 15:49:08 S 10 41 44.99 -08 57 14.3 L C51
2016-12-07 18:57:49 S 10 41 56.51 -08 55 16.0 L C51
2016-12-07 22:06:20 S 10 42 07.92 -08 53 18.2 L C51
2016-12-07 22:06:31 S 10 42 07.99 -08 53 17.5 L C51
2016-12-08 11:14:35 C 10 42 56.19 -08 45 10.5 R G45
2016-12-08 11:14:41 C 10 42 56.22 -08 45 10.6 R G45
2016-12-08 11:21:38 C 10 42 56.59 -08 45 05.9 R G45
2016-12-08 11:21:44 C 10 42 56.60 -08 45 06.2 R G45
2016-12-08 11:28:50 C 10 42 57.01 -08 45 01.6 R G45
2016-12-08 11:35:56 C 10 42 57.40 -08 44 57.0 R G45
2016-12-08 11:36:02 C 10 42 57.43 -08 44 57.2 R G45
2016-12-14 09:13:24 C 10 50 50.82 -07 07 00.9 u H21
2016-12-14 09:15:22 C 10 50 50.93 -07 06 59.4 u H21
2016-12-14 09:17:20 C 10 50 51.02 -07 06 58.1 u H21
2016-12-14 09:19:17 C 10 50 51.13 -07 06 56.5 u H21
2016-12-14 09:21:15 C 10 50 51.21 -07 06 55.0 u H21
2016-12-14 09:23:13 C 10 50 51.29 -07 06 53.1 u H21
2016-12-14 09:25:10 C 10 50 51.40 -07 06 51.5 u H21
2016-12-14 09:27:08 C 10 50 51.49 -07 06 50.1 u H21
2016-12-14 09:29:05 C 10 50 51.58 -07 06 48.4 u H21
2016-12-14 09:31:03 C 10 50 51.66 -07 06 47.1 u H21
2016-12-14 09:33:01 C 10 50 51.75 -07 06 45.7 u H21
2016-12-14 09:34:58 C 10 50 51.85 -07 06 44.0 u H21
2016-12-14 09:36:56 C 10 50 51.95 -07 06 42.4 u H21
2016-12-14 09:38:53 C 10 50 52.04 -07 06 41.1 u H21
2016-12-14 09:40:51 C 10 50 52.13 -07 06 39.5 u H21
2016-12-14 09:42:49 C 10 50 52.26 -07 06 37.9 u H21
2016-12-14 09:44:46 C 10 50 52.36 -07 06 36.8 u H21
2016-12-14 09:46:44 C 10 50 52.44 -07 06 35.1 u H21
2016-12-14 09:48:42 C 10 50 52.54 -07 06 33.6 u H21
2016-12-14 09:50:33 C 10 50 52.63 -07 06 32.5 u H21
2016-12-14 09:52:37 C 10 50 52.73 -07 06 30.8 u H21
2016-12-14 14:04:11 C 10 51 05.71 -07 03 18.0 L T05
2016-12-14 14:23:59 C 10 51 06.65 -07 03 03.3 L T05
2016-12-14 14:41:28 C 10 51 07.47 -07 02 49.7 L T05
2016-12-14 14:59:19 C 10 51 08.32 -07 02 36.8 L T05
2016-12-15 08:31:22 C 10 52 01.52 -06 49 18.9 u H21
2016-12-15 08:33:53 C 10 52 01.63 -06 49 16.9 u H21
2016-12-15 08:36:24 C 10 52 01.76 -06 49 15.1 u H21
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)