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
2017-03-15 21:10:40 C 09 42 41.67 +37 16 13.6 q 160
2017-03-15 21:12:39 C 09 42 41.60 +37 16 14.0 q 160
2017-03-15 21:14:38 C 09 42 41.54 +37 16 14.4 q 160
2017-03-17 08:52:53 C 09 41 45.19 +37 22 46.6 L T08
2017-03-17 08:55:06 C 09 41 45.20 +37 22 46.6 L T08
2017-03-17 09:10:58 C 09 41 44.67 +37 22 49.4 L T08
2017-03-17 09:13:12 C 09 41 44.60 +37 22 49.5 L T08
2017-03-17 09:29:33 C 09 41 44.16 +37 22 51.9 L T08
2017-03-17 09:31:20 C 09 41 44.11 +37 22 52.5 L T08
2017-03-17 09:46:27 C 09 41 43.71 +37 22 54.8 L T08
2017-03-17 09:49:23 C 09 41 43.65 +37 22 54.9 L T08
2017-03-18 08:55:50 C 09 41 11.60 +37 26 21.8 L T05
2017-03-18 09:33:04 C 09 41 10.64 +37 26 26.7 L T05
2017-03-18 09:45:46 C 09 41 10.35 +37 26 28.2 L T05
2017-03-18 09:57:13 C 09 41 10.03 +37 26 29.7 L T05
2017-03-20 00:41:42 C 09 40 23.98 +37 30 56.6 q G25
2017-03-20 01:27:59 C 09 40 23.00 +37 31 01.5 q G25
2017-03-20 01:48:12 C 09 40 22.60 +37 31 03.4 q G25
2017-03-20 04:57:00 C 09 40 19.25 +37 31 23.7 q G96
2017-03-20 05:03:08 C 09 40 19.12 +37 31 24.3 q G96
2017-03-20 05:09:25 C 09 40 18.98 +37 31 24.9 q G96
2017-03-20 05:15:38 C 09 40 18.85 +37 31 25.5 q G96
2017-03-22 06:11:04 C 09 39 33.54 +37 34 53.0 q 703
2017-03-22 06:19:36 C 09 39 33.41 +37 34 53.4 q 703
2017-03-22 06:28:02 C 09 39 33.27 +37 34 53.8 q 703
2017-03-22 06:36:24 C 09 39 33.14 +37 34 54.1 q 703
2017-03-22 08:51:54 C 09 39 31.53 +37 35 02.8 L T05
2017-03-22 09:06:56 C 09 39 31.24 +37 35 03.4 L T05
2017-03-22 09:18:15 C 09 39 31.08 +37 35 03.4 L T05
2017-03-22 09:37:42 C 09 39 30.78 +37 35 04.4 L T05
2017-03-22 09:41:27 C 09 39 30.69 +37 35 05.3 L T05
2017-03-22 09:53:35 C 09 39 30.54 +37 35 04.8 L T05
2017-03-22 09:55:50 C 09 39 30.48 +37 35 05.1 L T05
2017-03-22 10:13:42 C 09 39 30.21 +37 35 05.2 L T05
2017-03-24 08:34:16 C 09 39 01.50 +37 36 18.0 L T08
2017-03-24 08:53:45 C 09 39 01.29 +37 36 17.8 L T08
2017-03-24 09:13:07 C 09 39 01.03 +37 36 17.0 L T08
2017-03-24 09:32:32 C 09 39 00.83 +37 36 17.6 L T08
2017-03-25 06:12:44 C 09 38 51.94 +37 36 12.5 q 703
2017-03-25 06:20:19 C 09 38 51.87 +37 36 12.2 q 703
2017-03-25 06:54:00 C 09 38 51.57 +37 36 11.6 q 703
2017-03-26 08:49:40 C 09 38 43.97 +37 35 39.2 L T05
2017-03-26 09:08:35 C 09 38 43.80 +37 35 39.0 L T05
2017-03-26 09:20:00 C 09 38 43.66 +37 35 39.9 L T05
2017-03-26 09:26:51 C 09 38 43.62 +37 35 38.9 L T05
2017-03-26 09:29:50 C 09 38 43.62 +37 35 39.4 L T05
2017-03-26 09:44:06 C 09 38 43.50 +37 35 39.3 L T05
2017-03-26 09:46:20 C 09 38 43.49 +37 35 38.7 L T05
2017-03-26 09:57:10 C 09 38 43.39 +37 35 38.7 L T05
2017-03-29 12:34:22 C 09 38 41.72 +37 31 15.1 q D29
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)