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
2018-12-10 12:18:48 C 13 25 43.68 +03 32 12.1 V 703
2018-12-14 11:59:12 C 13 33 36.51 +03 23 14.0 V 703
2018-12-14 12:06:32 C 13 33 37.13 +03 23 12.5 V 703
2018-12-14 12:13:53 C 13 33 37.72 +03 23 13.2 V 703
2018-12-14 12:21:13 C 13 33 38.41 +03 23 11.3 V 703
2018-12-19 12:42:46 C 13 43 21.69 +03 15 25.7 V 703
2018-12-19 12:48:37 C 13 43 22.11 +03 15 25.0 V 703
2018-12-19 12:54:30 C 13 43 22.62 +03 15 24.5 V 703
2018-12-19 13:00:22 C 13 43 23.13 +03 15 24.3 V 703
2019-01-09 11:57:02 C 14 21 24.22 +03 31 27.6 I41
2019-01-09 13:02:29 C 14 21 28.80 +03 31 35.6 I41
2019-01-10 12:09:10 C 14 23 06.52 +03 34 26.6 I41
2019-01-10 13:04:09 C 14 23 10.32 +03 34 33.8 I41
2019-01-11 15:22:32 C 14 25 00.62 +03 38 04.5 V T05
2019-01-11 15:34:11 C 14 25 01.37 +03 38 06.6 V T05
2019-01-11 15:45:52 C 14 25 02.20 +03 38 08.1 V T05
2019-01-11 15:57:43 C 14 25 03.06 +03 38 09.8 V T05
2019-01-15 11:36:04 C 14 31 19.62 +03 52 26.4 V 703
2019-01-15 11:51:38 C 14 31 20.59 +03 52 28.5 V 703
2019-01-15 11:59:24 C 14 31 21.14 +03 52 30.4 V 703
2019-01-23 15:12:19 C 14 44 01.08 +04 34 10.0 V T05
2019-01-23 15:23:57 C 14 44 01.77 +04 34 12.6 V T05
2019-01-23 15:37:58 C 14 44 02.64 +04 34 16.5 V T05
2019-01-23 15:48:29 C 14 44 03.24 +04 34 19.0 V T05
2019-01-23 16:06:03 C 14 44 04.38 +04 34 23.8 V T05
2019-01-29 15:11:40 C 14 52 40.43 +05 15 09.5 V T08
2019-01-29 15:26:38 C 14 52 41.28 +05 15 14.9 V T08
2019-01-29 15:39:14 C 14 52 42.05 +05 15 18.1 V T08
2019-01-29 15:54:07 C 14 52 42.78 +05 15 24.1 V T08
2019-01-31 12:56:57 C 14 55 17.19 +05 30 06.0 V 703
2019-01-31 13:00:46 C 14 55 17.39 +05 30 07.0 V 703
2019-01-31 13:04:36 C 14 55 17.63 +05 30 08.4 V 703
2019-01-31 13:08:27 C 14 55 17.85 +05 30 09.0 V 703
2019-02-09 11:56:11 C 15 06 33.91 +06 53 09.8 V 703
2019-02-09 12:03:42 C 15 06 34.26 +06 53 13.3 V 703
2019-02-09 12:11:12 C 15 06 34.62 +06 53 16.9 V 703
2019-02-09 12:18:44 C 15 06 34.99 +06 53 19.9 V 703
2019-02-16 02:40:03 C 15 13 41.98 +08 08 22.2 q C95
2019-02-16 02:42:41 C 15 13 42.07 +08 08 23.4 q C95
2019-02-16 02:45:18 C 15 13 42.18 +08 08 24.7 q C95
2019-02-16 02:48:06 C 15 13 42.30 +08 08 26.3 q C95
2019-02-16 02:50:44 C 15 13 42.41 +08 08 27.4 q C95
2019-02-16 02:53:24 C 15 13 42.53 +08 08 28.4 q C95
2019-02-17 03:41:29 C 15 14 43.19 +08 21 19.1 q 160
2019-02-17 03:44:49 C 15 14 43.34 +08 21 21.1 q 160
2019-02-17 03:48:10 C 15 14 43.46 +08 21 22.3 q 160
2019-02-25 05:16:42 C 15 21 35.00 +10 11 22.0 18.7 q J43
2019-02-25 05:29:04 C 15 21 35.34 +10 11 29.6 18.3 q J43
2019-02-25 05:41:25 C 15 21 35.69 +10 11 37.3 18.3 q J43
2019-02-25 05:53:42 C 15 21 36.06 +10 11 44.7 18.2 q J43
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)