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
2024-04-22 15:13:01 S 15 04 40.145 +26 09 01.15 V C57
2024-04-22 15:13:01 s 1 -103428.39 5 +40479.272 0.0 C57
2024-04-22 15:33:01 S 15 04 38.770 +26 09 13.97 V C57
2024-04-22 15:33:01 s 1 -103943.68 0 +38436.042 0.13 C57
2024-04-22 16:33:01 S 15 04 34.368 +26 09 54.32 V C57
2024-04-22 16:33:01 s 1 -105408.15 2 +32277.337 0.924 C57
2024-04-22 17:53:01 S 15 04 28.937 +26 10 35.54 V C57
2024-04-22 17:53:01 s 1 -107163.73 1 +24006.605 0.53 C57
2024-04-22 18:13:01 S 15 04 27.576 +26 10 46.99 V C57
2024-04-22 18:13:01 s 1 -107566.26 6 +21930.003 0.83 C57
2024-04-22 18:33:01 S 15 04 26.093 +26 10 59.70 V C57
2024-04-22 18:33:01 s 1 -107953.79 4 +19850.325 0.761 C57
2024-04-22 18:53:01 S 15 04 24.665 +26 11 11.36 V C57
2024-04-22 18:53:01 s 1 -108326.21 0 +17767.853 0.353 C57
2024-04-22 19:13:01 S 15 04 23.350 +26 11 24.94 V C57
2024-04-22 19:13:01 s 1 -108683.41 6 +15682.869 0.641 C57
2024-04-22 22:33:01 S 15 04 08.573 +26 13 19.20 V C57
2024-04-22 22:33:01 s 1 -111376.36 1 - 5242.549 0.141 C57
2024-04-25 11:54:19 C 14 59 59.232 +26 43 20.35 V T05
2024-04-25 11:58:48 C 14 59 58.944 +26 43 22.62 V T05
2024-04-25 12:07:16 C 14 59 58.363 +26 43 26.36 V T05
2024-04-25 12:21:31 C 14 59 57.365 +26 43 32.34 V T05
2024-04-26 09:48:36 C 14 58 30.774 +26 52 35.94 V 703
2024-04-26 09:51:54 C 14 58 30.540 +26 52 37.49 V 703
2024-04-26 09:55:14 C 14 58 30.292 +26 52 38.68 V 703
2024-04-26 09:58:33 C 14 58 30.029 +26 52 39.97 V 703
2024-04-26 11:56:26 C 14 58 22.262 +26 53 30.01 V T05
2024-04-26 12:01:38 C 14 58 21.862 +26 53 32.78 V T05
2024-04-26 12:10:06 C 14 58 21.230 +26 53 36.02 V T05
2024-04-26 12:39:06 C 14 58 19.267 +26 53 48.19 V T05
2024-04-29 09:53:57 C 14 53 34.838 +27 19 37.38 V T05
2024-04-29 09:57:12 C 14 53 34.584 +27 19 38.68 V T05
2024-04-29 10:01:46 C 14 53 34.248 +27 19 40.19 V T05
2024-04-29 10:11:46 C 14 53 33.557 +27 19 43.57 V T05
2024-04-30 08:33:51 C 14 51 59.990 +27 26 55.07 V G96
2024-04-30 08:41:22 C 14 51 59.450 +27 26 57.30 V G96
2024-04-30 08:48:54 C 14 51 58.907 +27 26 59.68 V G96
2024-04-30 08:56:25 C 14 51 58.363 +27 27 01.98 V G96
2024-05-01 09:53:29 C 14 50 13.603 +27 34 25.00 V 703
2024-05-01 09:56:47 C 14 50 13.355 +27 34 25.72 V 703
2024-05-01 10:00:06 C 14 50 13.117 +27 34 26.83 V 703
2024-05-01 10:03:25 C 14 50 12.880 +27 34 27.66 V 703
2024-05-01 10:26:42 C 14 50 11.621 +27 34 36.91 V T08
2024-05-01 10:32:21 C 14 50 11.206 +27 34 38.50 V T08
2024-05-01 10:42:18 C 14 50 10.483 +27 34 41.16 V T08
2024-05-01 11:21:35 C 14 50 07.620 +27 34 52.25 V T08
2024-05-01 22:35:02 B 14 49 20.651 +27 37 52.16 X B72
2024-05-01 22:39:07 B 14 49 20.345 +27 37 53.18 X B72
2024-05-01 22:43:13 B 14 49 20.041 +27 37 54.37 X B72
2024-05-03 10:41:06 C 14 46 48.254 +27 46 52.10 V T05
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)