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
2017-02-13 06:37:14 C 10 26 51.68 +27 50 00.3 u H21
2017-02-13 06:39:12 C 10 26 51.52 +27 50 03.1 u H21
2017-02-13 06:41:09 C 10 26 51.37 +27 50 05.8 u H21
2017-02-13 06:43:07 C 10 26 51.21 +27 50 08.8 u H21
2017-02-13 06:45:05 C 10 26 51.04 +27 50 11.5 u H21
2017-02-13 06:47:02 C 10 26 50.88 +27 50 14.4 u H21
2017-02-13 06:49:00 C 10 26 50.72 +27 50 17.3 u H21
2017-02-13 06:50:57 C 10 26 50.55 +27 50 20.0 u H21
2017-02-13 06:52:54 C 10 26 50.40 +27 50 22.9 u H21
2017-02-13 06:54:39 C 10 26 50.26 +27 50 25.4 u H21
2017-02-13 11:15:11 C 10 26 29.99 +27 56 44.4 L T05
2017-02-13 11:32:34 C 10 26 28.56 +27 57 09.3 L T05
2017-02-13 11:37:44 C 10 26 28.12 +27 57 16.7 L T05
2017-02-13 12:00:51 C 10 26 26.21 +27 57 49.4 L T05
2017-02-14 23:50:47 C 10 23 38.51 +28 47 49.7 q 160
2017-02-14 23:53:05 C 10 23 38.34 +28 47 52.3 q 160
2017-02-14 23:55:20 C 10 23 38.15 +28 47 56.2 q 160
2017-02-15 10:32:40 C 10 22 47.81 +29 02 20.8 q 703
2017-02-15 10:39:11 C 10 22 47.24 +29 02 29.4 q 703
2017-02-15 10:45:40 C 10 22 46.66 +29 02 38.2 q 703
2017-02-15 10:52:09 C 10 22 46.12 +29 02 46.8 q 703
2017-02-15 11:51:34 C 10 22 41.93 +29 04 11.9 L T08
2017-02-15 12:12:55 C 10 22 40.16 +29 04 40.2 L T08
2017-02-15 12:37:25 C 10 22 38.13 +29 05 13.2 L T08
2017-02-15 12:53:27 C 10 22 36.81 +29 05 34.5 L T08
2017-02-15 21:50:41 C 10 21 56.07 +29 17 25.1 q Z45
2017-02-15 21:54:38 C 10 21 55.76 +29 17 30.4 q Z45
2017-02-15 22:00:08 C 10 21 55.30 +29 17 37.9 q Z45
2017-02-16 00:04:00 C 10 21 44.88 +29 20 19.8 u 557
2017-02-16 01:02:45 C 10 21 40.11 +29 21 37.1 u 557
2017-02-16 02:04:36 C 10 21 35.18 +29 22 56.6 u 557
2017-02-16 03:03:21 C 10 21 30.38 +29 24 14.2 u 557
2017-02-16 04:02:06 C 10 21 25.68 +29 25 30.3 u 557
2017-02-16 05:00:50 C 10 21 21.05 +29 26 46.3 u 557
2017-02-16 18:25:37 C 10 20 18.92 +29 44 15.5 o C94
2017-02-16 18:47:31 C 10 20 17.17 +29 44 43.8 o C94
2017-02-17 10:59:04 C 10 19 01.80 +30 05 26.0 L T05
2017-02-17 11:15:18 C 10 19 00.45 +30 05 46.5 L T05
2017-02-17 11:38:04 C 10 18 58.57 +30 06 15.2 L T08
2017-02-17 11:45:47 C 10 18 57.94 +30 06 24.5 L T05
2017-02-17 11:55:46 C 10 18 57.11 +30 06 37.2 L T08
2017-02-17 12:11:01 C 10 18 55.85 +30 06 56.2 L T08
2017-02-17 12:16:49 C 10 18 55.38 +30 07 03.1 L T05
2017-02-17 12:21:51 C 10 18 54.97 +30 07 09.4 L T05
2017-02-17 12:30:49 C 10 18 54.23 +30 07 20.7 L T08
2017-02-18 17:45:19 C 10 16 38.76 +30 43 04.8 q D29
2017-02-18 18:08:14 C 10 16 36.89 +30 43 31.9 q D29
2017-02-18 18:31:08 C 10 16 35.05 +30 43 59.0 q D29
2017-02-18 23:59:01 C 10 16 10.27 +30 50 26.9 q 160
2017-02-19 00:00:58 C 10 16 10.11 +30 50 29.4 q 160
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)