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
2014-03-31 11:57:58 C 15 17 54.31 +21 10 10.9 R G45
2014-04-01 19:00:37 C 15 16 52.36 +21 35 10.1 q D29
2014-04-01 19:23:32 C 15 16 51.50 +21 35 28.5 q D29
2014-04-01 19:46:25 C 15 16 50.66 +21 35 46.6 q D29
2014-04-03 10:33:13 C 15 15 26.32 +22 06 35.9 q 703
2014-04-03 10:41:47 C 15 15 25.98 +22 06 42.3 q 703
2014-04-03 10:50:20 C 15 15 25.62 +22 06 48.9 q 703
2014-04-03 10:58:54 C 15 15 25.28 +22 06 55.7 q 703
2014-04-06 22:09:53 C 15 12 00.36 +23 11 07.9 o C41
2014-04-06 22:11:29 C 15 12 00.24 +23 11 08.5 o C41
2014-04-06 22:12:58 C 15 12 00.17 +23 11 10.0 o C41
2014-04-06 22:14:27 C 15 12 00.11 +23 11 10.5 o C41
2014-04-06 23:16:23 C 15 11 57.28 +23 11 57.3 o C41
2014-04-06 23:17:53 C 15 11 57.19 +23 11 58.3 o C41
2014-04-07 09:44:29 C 15 11 29.09 +23 19 50.6 q G96
2014-04-07 09:58:42 C 15 11 28.42 +23 20 01.2 q G96
2014-04-07 10:12:54 C 15 11 27.74 +23 20 11.9 q G96
2014-04-07 10:27:08 C 15 11 27.07 +23 20 22.5 q G96
2014-04-12 00:29:39 C 15 06 02.54 +24 39 18.9 q Z81
2014-04-12 01:08:46 C 15 06 00.38 +24 39 45.7 q Z81
2014-04-12 01:41:00 C 15 05 58.61 +24 40 08.0 q Z81
2014-04-13 18:17:01 C 15 03 45.92 +25 07 17.4 q D29
2014-04-13 18:31:20 C 15 03 45.12 +25 07 27.2 q D29
2014-04-13 18:45:38 C 15 03 44.34 +25 07 36.3 q D29
2014-04-16 05:34:23 C 15 00 21.81 +25 44 44.2 u H21
2014-04-16 05:37:06 C 15 00 21.62 +25 44 46.1 u H21
2014-04-16 05:41:11 C 15 00 21.38 +25 44 48.5 u H21
2014-04-16 05:45:16 C 15 00 21.14 +25 44 50.8 u H21
2014-04-16 05:48:22 C 15 00 20.94 +25 44 52.7 u H21
2014-04-16 07:35:23 C 15 00 14.38 +25 45 58.2 u H21
2014-04-16 07:37:57 C 15 00 14.23 +25 45 59.7 u H21
2014-04-16 07:40:32 C 15 00 14.05 +25 46 01.5 u H21
2014-04-16 07:43:06 C 15 00 13.90 +25 46 02.8 u H21
2014-04-16 07:45:40 C 15 00 13.74 +25 46 04.4 u H21
2014-04-16 07:48:12 C 15 00 13.59 +25 46 05.8 u H21
2014-04-16 07:51:39 C 15 00 13.37 +25 46 08.1 u H21
2014-04-17 05:49:53 C 14 58 54.65 +25 59 15.2 u H21
2014-04-17 05:54:02 C 14 58 54.40 +25 59 17.5 u H21
2014-04-17 05:58:12 C 14 58 54.12 +25 59 20.1 u H21
2014-04-17 06:02:21 C 14 58 53.86 +25 59 22.6 u H21
2014-04-17 06:06:29 C 14 58 53.62 +25 59 24.9 u H21
2014-04-17 06:10:38 C 14 58 53.36 +25 59 27.5 u H21
2014-04-17 06:14:47 C 14 58 53.09 +25 59 30.0 u H21
2014-04-17 06:18:55 C 14 58 52.83 +25 59 32.3 u H21
2014-04-17 06:25:58 C 14 58 52.39 +25 59 36.5 u H21
2014-04-17 07:13:04 C 14 58 49.45 +26 00 04.0 u H21
2014-04-17 07:15:53 C 14 58 49.26 +26 00 05.9 u H21
2014-04-17 07:18:35 C 14 58 49.09 +26 00 07.5 u H21
2014-04-17 07:21:10 C 14 58 48.93 +26 00 09.0 u H21
2014-04-17 07:23:51 C 14 58 48.76 +26 00 10.7 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)