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
2017-03-29 12:54:44 C 09 38 41.73 +37 31 13.4 q D29
2017-03-29 13:15:06 C 09 38 41.73 +37 31 11.6 q D29
2017-03-30 08:50:32 C 09 38 45.74 +37 29 26.4 L T05
2017-03-30 09:01:09 C 09 38 45.74 +37 29 25.2 L T05
2017-03-30 09:15:24 C 09 38 45.78 +37 29 24.3 L T05
2017-03-30 09:26:56 C 09 38 45.75 +37 29 22.5 L T05
2017-03-31 20:49:56 C 09 38 58.64 +37 25 29.4 q 160
2017-03-31 20:51:53 C 09 38 58.65 +37 25 29.1 q 160
2017-03-31 20:53:50 C 09 38 58.65 +37 25 28.9 q 160
2017-04-01 07:58:25 C 09 39 03.83 +37 24 11.5 L T08
2017-04-01 08:17:45 C 09 39 03.91 +37 24 08.5 L T08
2017-04-01 08:37:04 C 09 39 04.07 +37 24 06.2 L T08
2017-04-01 08:57:06 C 09 39 04.17 +37 24 04.2 L T08
2017-04-05 06:43:34 C 09 40 11.67 +37 09 48.6 L T08
2017-04-05 07:07:22 C 09 40 11.96 +37 09 45.0 L T08
2017-04-05 07:27:41 C 09 40 12.19 +37 09 40.8 L T08
2017-04-05 07:48:19 C 09 40 12.54 +37 09 36.4 L T08
2017-04-07 08:18:29 C 09 41 02.33 +37 00 26.9 L T05
2017-04-07 08:40:27 C 09 41 02.74 +37 00 23.6 L T05
2017-04-07 08:54:19 C 09 41 03.01 +37 00 20.3 L T05
2017-04-07 09:05:49 C 09 41 03.20 +37 00 17.3 L T05
2017-04-07 21:07:40 C 09 41 17.24 +36 57 48.1 q 160
2017-04-07 21:09:38 C 09 41 17.29 +36 57 47.7 q 160
2017-04-07 21:11:35 C 09 41 17.32 +36 57 47.4 q 160
2017-04-08 06:52:06 C 09 41 29.19 +36 55 49.5 L T08
2017-04-08 07:13:47 C 09 41 29.58 +36 55 46.1 L T08
2017-04-08 07:34:14 C 09 41 29.94 +36 55 41.1 L T08
2017-04-08 07:53:11 C 09 41 30.27 +36 55 37.1 L T08
2017-04-12 02:48:23 C 09 43 37.40 +36 34 41.4 u H21
2017-04-12 02:54:03 C 09 43 37.53 +36 34 40.0 u H21
2017-04-12 02:57:49 C 09 43 37.62 +36 34 39.2 u H21
2017-04-12 03:01:35 C 09 43 37.71 +36 34 38.2 u H21
2017-04-12 03:04:51 C 09 43 37.79 +36 34 37.4 u H21
2017-04-12 20:36:10 C 09 44 05.75 +36 30 11.8 q 160
2017-04-12 20:38:58 C 09 44 05.81 +36 30 11.3 q 160
2017-04-12 20:42:13 C 09 44 05.88 +36 30 10.6 q 160
2017-04-13 07:02:03 C 09 44 22.93 +36 27 35.0 L T08
2017-04-13 07:13:59 C 09 44 23.21 +36 27 32.1 L T08
2017-04-13 07:36:23 C 09 44 23.82 +36 27 25.3 L T08
2017-04-13 07:52:07 C 09 44 24.20 +36 27 22.8 L T08
2017-04-15 07:52:28 C 09 45 47.90 +36 14 31.4 L T05
2017-04-15 08:24:01 C 09 45 48.75 +36 14 22.6 L T05
2017-04-15 08:39:08 C 09 45 49.19 +36 14 17.7 L T05
2017-04-15 08:58:03 C 09 45 49.91 +36 14 11.5 L T05
2017-04-16 06:50:26 C 09 46 30.78 +36 08 06.0 L T08
2017-04-16 07:13:05 C 09 46 31.42 +36 07 59.6 L T08
2017-04-16 07:35:35 C 09 46 32.08 +36 07 53.0 L T08
2017-04-16 07:57:23 C 09 46 32.78 +36 07 46.8 L T08
2017-04-17 03:58:40 C 09 47 11.53 +36 01 59.8 q 703
2017-04-17 04:05:01 C 09 47 11.72 +36 01 57.9 q 703
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)