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
2006-06-21 10:17:12 C 21 17 03.34 +12 06 02.7 r 683
2006-06-23 22:43:10 C 21 22 32.60 +12 10 12.7 r A13
2006-06-23 23:04:15 C 21 22 34.51 +12 10 13.8 r A13
2006-06-23 23:42:35 C 21 22 37.97 +12 10 15.8 r A13
2006-06-24 23:57:21 C 21 24 54.91 +12 10 53.5 r 941
2006-06-24 23:58:37 C 21 24 55.03 +12 10 53.4 r 941
2006-06-25 00:00:31 C 21 24 55.20 +12 10 53.5 r 941
2006-06-25 00:01:47 C 21 24 55.33 +12 10 53.4 r 941
2006-06-30 00:04:49 C 21 37 04.40 +12 02 38.6 o B04
2006-06-30 00:10:03 C 21 37 04.95 +12 02 37.7 o B04
2006-06-30 00:32:46 C 21 37 07.31 +12 02 34.3 o B04
2006-07-01 00:53:26 C 21 39 47.81 +11 58 15.4 o B04
2006-07-01 01:02:16 C 21 39 48.74 +11 58 13.7 o B04
2006-07-01 01:14:19 C 21 39 50.03 +11 58 11.4 o B04
2006-07-01 01:22:12 C 21 39 50.88 +11 58 09.7 o B04
2006-07-02 00:53:47 C 21 42 30.99 +11 52 56.3 o A32
2006-07-02 00:55:27 C 21 42 31.19 +11 52 55.9 o A32
2006-07-02 00:57:06 C 21 42 31.36 +11 52 55.4 o A32
2006-07-02 00:58:46 C 21 42 31.54 +11 52 55.0 o A32
2006-07-02 01:02:07 C 21 42 31.91 +11 52 54.0 o A32
2006-07-02 16:30:48 C 21 44 19.84 +11 49 28.8 r E26
2006-07-02 16:38:16 C 21 44 20.68 +11 49 26.7 r E26
2006-07-02 23:08:30 C 21 45 07.61 +11 47 05.9 c 127
2006-07-02 23:14:20 C 21 45 08.28 +11 47 04.5 c 127
2006-07-02 23:21:33 C 21 45 09.11 +11 47 02.3 c 127
2006-07-02 23:26:44 C 21 45 09.72 +11 47 00.9 c 127
2006-07-02 23:31:50 C 21 45 10.30 +11 46 59.4 c 127
2006-07-02 23:47:17 C 21 45 11.97 +11 46 54.0 o A32
2006-07-02 23:50:36 C 21 45 12.35 +11 46 53.0 o A32
2006-07-02 23:53:57 C 21 45 12.73 +11 46 52.2 o A32
2006-07-02 23:58:37 C 21 45 13.26 +11 46 50.9 o A32
2006-07-03 00:01:53 C 21 45 13.65 +11 46 49.9 o A32
2006-07-03 14:24:56 C 21 46 57.66 +11 43 03.5 r E26
2006-07-03 14:33:02 C 21 46 58.59 +11 43 01.1 r E26
2006-07-03 23:07:47 C 21 48 01.50 +11 39 41.4 c 127
2006-07-03 23:13:32 C 21 48 02.18 +11 39 39.7 c 127
2006-07-03 23:18:55 C 21 48 02.85 +11 39 37.9 c 127
2006-07-03 23:24:12 C 21 48 03.48 +11 39 36.1 c 127
2006-07-03 23:30:02 C 21 48 04.17 +11 39 34.3 c 127
2006-07-10 05:45:48 C 22 08 56.90 +10 21 44.4 r I77
2006-07-10 05:48:31 C 22 08 57.29 +10 21 42.4 r I77
2006-07-10 05:51:08 C 22 08 57.70 +10 21 40.4 r I77
2006-07-17 23:32:02 C 22 44 40.30 +06 50 25.0 c J93
2006-07-17 23:35:06 C 22 44 40.99 +06 50 19.7 c J93
2006-07-17 23:38:10 C 22 44 41.72 +06 50 14.9 c J93
2006-07-18 00:31:56 C 22 44 53.91 +06 48 49.6 c 196
2006-07-18 01:14:03 C 22 45 03.52 +06 47 41.2 c 196
2006-07-18 01:39:01 C 22 45 09.21 +06 47 00.3 c 196
2006-07-21 07:45:06 C 23 05 25.43 +04 18 05.8 13.9 c 704
2006-07-21 08:00:04 C 23 05 29.55 +04 17 33.3 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)