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
2021-07-17 00:57:25 C 00 23 15.35 +05 17 54.1 V 089
2021-07-17 01:00:43 C 00 23 16.41 +05 17 50.2 V 089
2021-07-17 11:46:24 C 00 26 43.63 +05 04 48.7 V T08
2021-07-17 12:09:32 C 00 26 50.95 +05 04 20.1 V T08
2021-07-17 12:28:25 C 00 26 56.88 +05 03 56.7 V T08
2021-07-17 12:37:06 C 00 26 59.63 +05 03 45.9 V T08
2021-07-18 00:33:44 C 00 30 51.73 +04 48 23.0 V 089
2021-07-18 00:37:03 C 00 30 52.77 +04 48 18.9 V 089
2021-07-18 00:40:21 C 00 30 53.83 +04 48 14.4 V 089
2021-07-18 00:43:39 C 00 30 54.89 +04 48 10.3 V 089
2021-07-18 00:46:57 C 00 30 55.96 +04 48 06.0 V 089
2021-07-18 00:50:15 C 00 30 57.03 +04 48 01.8 V 089
2021-07-18 00:53:33 C 00 30 58.10 +04 47 57.2 V 089
2021-07-18 00:56:51 C 00 30 59.15 +04 47 53.0 V 089
2021-07-18 01:00:09 C 00 31 00.19 +04 47 48.8 V 089
2021-07-18 01:03:27 C 00 31 01.26 +04 47 44.8 V 089
2021-07-19 13:00:16 C 00 43 03.02 +03 59 28.3 V T05
2021-07-19 13:05:34 C 00 43 04.80 +03 59 20.7 V T05
2021-07-19 13:12:49 C 00 43 07.21 +03 59 10.7 V T05
2021-07-19 13:29:58 C 00 43 12.95 +03 58 46.6 V T05
2021-07-20 00:35:27 C 00 47 01.78 +03 42 44.3 V 089
2021-07-20 00:45:22 C 00 47 05.16 +03 42 29.6 V 089
2021-07-20 00:48:40 C 00 47 06.28 +03 42 24.8 V 089
2021-07-20 01:11:18 C 00 47 14.00 +03 41 52.5 V 089
2021-07-20 01:14:36 C 00 47 15.09 +03 41 47.5 V 089
2021-07-20 01:17:54 C 00 47 16.21 +03 41 43.2 V 089
2021-07-20 01:21:12 C 00 47 17.34 +03 41 38.1 V 089
2021-07-22 12:47:28 C 01 08 34.57 +02 10 25.2 V T05
2021-07-22 12:58:02 C 01 08 38.39 +02 10 08.0 V T05
2021-07-22 13:02:41 C 01 08 40.07 +02 10 00.4 V T05
2021-07-22 13:22:32 C 01 08 47.24 +02 09 28.2 V T05
2021-07-23 18:06:56 C 01 19 32.56 +01 21 26.1 q D29
2021-07-23 18:21:29 C 01 19 37.98 +01 21 01.4 q D29
2021-07-25 12:42:51 C 01 35 57.69 +00 06 45.1 V T08
2021-07-25 12:47:29 C 01 35 59.48 +00 06 36.7 V T08
2021-07-25 12:58:47 C 01 36 03.82 +00 06 16.4 V T08
2021-07-25 13:13:25 C 01 36 09.43 +00 05 49.8 V T08
2021-07-26 01:18:28 C 01 40 53.97 -00 16 21.0 V 089
2021-07-26 01:21:47 C 01 40 55.30 -00 16 27.2 V 089
2021-07-26 01:25:05 C 01 40 56.58 -00 16 33.2 V 089
2021-07-26 01:28:23 C 01 40 57.85 -00 16 39.6 V 089
2021-07-26 01:31:41 C 01 40 59.10 -00 16 45.4 V 089
2021-07-26 14:00:33 C 01 45 56.24 -00 39 28.9 V T05
2021-07-26 14:06:29 C 01 45 58.55 -00 39 39.9 V T05
2021-07-26 14:34:00 C 01 46 09.26 -00 40 30.5 V T05
2021-07-26 14:50:19 C 01 46 15.60 -00 41 00.8 V T05
2021-07-27 00:47:46 C 01 50 14.44 -00 59 44.9 V 089
2021-07-27 00:51:04 C 01 50 15.74 -00 59 50.7 V 089
2021-07-27 01:22:06 C 01 50 27.98 -01 00 48.5 V 089
2021-07-27 01:25:24 C 01 50 29.26 -01 00 54.9 V 089
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)