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
2022-02-10 20:23:52 s 1 -136815.34 9 -59392.548 5570.0 C57
2022-02-10 20:43:52 S 10 47 34.980 +25 46 17.44 V C57
2022-02-10 20:43:52 s 1 -135407.29 0 -60974.986 3840.0 C57
2022-02-10 20:53:52 S 10 47 34.140 +25 46 31.08 V C57
2022-02-10 20:53:52 s 1 -134696.03 3 -61762.970 7430.0 C57
2022-02-10 21:23:52 S 10 47 31.613 +25 47 16.94 V C57
2022-02-10 21:23:52 s 1 -132533.19 9 -64113.434 5470.0 C57
2022-02-10 21:43:52 S 10 47 30.012 +25 47 49.85 V C57
2022-02-10 21:43:52 s 1 -131066.96 4 -65668.702 8200.0 C57
2022-02-10 21:53:52 S 10 47 29.018 +25 48 04.28 V C57
2022-02-10 21:53:52 s 1 -130326.50 7 -66442.679 8670.0 C57
2022-02-10 23:33:52 S 10 47 21.007 +25 50 35.77 V C57
2022-02-10 23:33:52 s 1 -122650.26 7 -74036.522 3940.0 C57
2022-02-10 23:43:52 S 10 47 20.146 +25 50 49.85 V C57
2022-02-10 23:43:52 s 1 -121855.26 9 -74780.175 6030.0 C57
2022-02-10 23:53:52 S 10 47 19.222 +25 51 06.55 V C57
2022-02-10 23:53:52 s 1 -121055.26 1 -75520.755 7260.0 C57
2022-02-11 00:03:52 S 10 47 18.442 +25 51 20.66 V C57
2022-02-11 00:03:52 s 1 -120250.23 7 -76258.206 7610.0 C57
2022-02-11 02:23:52 S 10 47 07.118 +25 54 51.48 V C57
2022-02-11 02:23:52 s 1 -108450.59 4 -86221.865 1040.0 C57
2022-02-11 08:48:04 C 10 46 59.93 +26 04 56.7 V 703
2022-02-11 08:55:42 C 10 46 59.33 +26 05 08.3 V 703
2022-02-11 09:03:21 C 10 46 58.73 +26 05 20.0 V 703
2022-02-11 09:10:59 C 10 46 58.13 +26 05 31.6 V 703
2022-02-11 10:52:07 C 10 46 51.03 +26 08 08.7 V T05
2022-02-11 10:56:45 C 10 46 50.67 +26 08 15.9 V T05
2022-02-11 11:01:02 C 10 46 50.33 +26 08 22.5 V T05
2022-02-11 11:08:19 C 10 46 49.76 +26 08 33.5 V T05
2022-02-12 09:06:35 C 10 45 12.11 +26 41 39.6 V T05
2022-02-12 09:16:51 C 10 45 11.30 +26 41 55.1 V T05
2022-02-12 09:21:27 C 10 45 10.94 +26 42 02.1 V T05
2022-02-12 09:30:01 C 10 45 10.26 +26 42 15.0 V T05
2022-02-12 20:47:41 C 10 44 19.45 +26 58 53.1 V K83
2022-02-12 20:50:55 C 10 44 19.20 +26 58 57.7 V K83
2022-02-12 20:54:09 C 10 44 18.96 +26 59 02.5 V K83
2022-02-13 04:33:30 C 10 43 44.47 +27 10 19.2 V 703
2022-02-13 04:41:30 C 10 43 43.86 +27 10 31.2 V 703
2022-02-13 04:49:31 C 10 43 43.23 +27 10 43.1 V 703
2022-02-13 04:57:31 C 10 43 42.61 +27 10 55.0 V 703
2022-02-13 09:00:25 C 10 43 24.12 +27 16 54.3 V T08
2022-02-13 09:05:44 C 10 43 23.70 +27 17 02.1 V T08
2022-02-13 09:11:44 C 10 43 23.22 +27 17 10.9 V T08
2022-02-13 09:19:02 C 10 43 22.64 +27 17 21.7 V T08
2022-02-14 09:55:11 C 10 41 30.17 +27 52 43.8 V T08
2022-02-14 09:57:51 C 10 41 29.96 +27 52 47.6 V T08
2022-02-14 10:01:49 C 10 41 29.64 +27 52 53.4 V T08
2022-02-14 10:13:06 C 10 41 28.72 +27 53 09.6 V T08
2022-02-15 01:13:51 S 10 41 07.411 +28 14 54.20 V C57
2022-02-15 01:13:51 s 1 +187440.81 7 +213134.63 1310.0 C57
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)