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
2017-02-19 00:02:56 C 10 16 09.94 +30 50 31.6 q 160
2017-02-19 20:45:21 C 10 14 35.61 +31 14 35.5 q 108
2017-02-19 20:49:47 C 10 14 35.25 +31 14 40.5 q 108
2017-02-19 20:54:14 C 10 14 34.95 +31 14 46.0 q 108
2017-02-21 10:40:33 C 10 11 43.31 +31 56 38.4 L T05
2017-02-21 10:55:33 C 10 11 42.11 +31 56 54.9 L T08
2017-02-21 10:57:40 C 10 11 41.97 +31 56 56.7 L T05
2017-02-21 11:13:44 C 10 11 40.66 +31 57 14.2 L T08
2017-02-21 11:29:30 C 10 11 39.44 +31 57 30.5 L T05
2017-02-21 11:30:31 C 10 11 39.32 +31 57 32.0 L T08
2017-02-21 11:47:49 C 10 11 37.96 +31 57 50.2 L T08
2017-02-21 12:02:47 C 10 11 36.80 +31 58 05.8 L T05
2017-02-22 10:49:18 C 10 09 55.18 +32 21 46.3 R G45
2017-02-22 10:49:48 C 10 09 55.14 +32 21 46.9 R G45
2017-02-22 10:56:12 C 10 09 54.64 +32 21 53.2 R G45
2017-02-22 10:56:41 C 10 09 54.59 +32 21 53.8 R G45
2017-02-22 11:03:12 C 10 09 54.11 +32 22 00.3 R G45
2017-02-22 11:03:41 C 10 09 54.08 +32 22 00.8 R G45
2017-02-22 11:10:09 C 10 09 53.59 +32 22 07.1 R G45
2017-02-22 11:10:38 C 10 09 53.55 +32 22 07.6 R G45
2017-02-22 11:17:38 C 10 09 53.02 +32 22 14.6 R G45
2017-02-22 11:23:53 C 10 09 52.56 +32 22 20.9 R G45
2017-02-22 11:24:29 C 10 09 52.50 +32 22 21.6 R G45
2017-02-22 19:17:04 C 10 09 19.45 +32 30 17.6 q 107
2017-02-22 19:22:23 C 10 09 19.09 +32 30 23.5 q 107
2017-02-22 19:27:45 C 10 09 18.62 +32 30 29.2 q 107
2017-02-24 04:17:33 C 10 06 56.26 +33 02 28.1 q 703
2017-02-24 04:23:54 C 10 06 55.78 +33 02 34.3 q 703
2017-02-24 04:30:14 C 10 06 55.31 +33 02 40.3 q 703
2017-02-24 04:36:33 C 10 06 54.85 +33 02 46.1 q 703
2017-02-24 06:03:56 C 10 06 48.35 +33 04 09.7 q G96
2017-02-24 06:10:03 C 10 06 47.89 +33 04 15.6 q G96
2017-02-24 06:16:11 C 10 06 47.43 +33 04 21.4 q G96
2017-02-24 06:22:17 C 10 06 46.97 +33 04 27.0 q G96
2017-02-25 03:23:15 C 10 05 18.57 +33 23 39.8 R G45
2017-02-25 03:30:03 C 10 05 18.08 +33 23 46.1 R G45
2017-02-25 03:37:09 C 10 05 17.55 +33 23 52.5 R G45
2017-02-25 03:43:51 C 10 05 17.08 +33 23 58.7 R G45
2017-02-25 10:43:52 C 10 04 46.99 +33 30 17.0 L T05
2017-02-25 11:01:58 C 10 04 45.65 +33 30 32.8 L T05
2017-02-25 11:33:12 C 10 04 43.35 +33 31 00.0 L T05
2017-02-25 11:37:34 C 10 04 43.02 +33 31 03.6 L T05
2017-02-27 06:28:30 C 10 01 49.24 +34 06 58.5 q 703
2017-02-27 06:36:27 C 10 01 48.60 +34 07 06.2 q 703
2017-02-27 06:44:22 C 10 01 48.03 +34 07 11.5 q 703
2017-02-27 06:52:18 C 10 01 47.49 +34 07 18.0 q 703
2017-02-28 13:10:04 C 09 59 49.48 +34 30 39.5 o 300
2017-02-28 13:13:22 C 09 59 49.24 +34 30 41.9 o 300
2017-02-28 13:16:40 C 09 59 49.07 +34 30 44.4 o 300
2017-03-03 06:00:44 C 09 55 51.50 +35 15 05.6 R G45
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)