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
2007-01-08 11:53:45 C 10 50 08.22 +02 09 34.6 r H45
2007-01-13 09:17:53 C 10 47 53.54 +05 29 29.9 16.5 c 704
2007-01-13 09:36:50 C 10 47 52.97 +05 30 03.8 16.4 c 704
2007-01-13 09:57:22 C 10 47 52.36 +05 30 40.3 16.5 c 704
2007-01-13 10:16:02 C 10 47 51.76 +05 31 13.5 16.6 c 704
2007-01-13 10:34:34 C 10 47 51.19 +05 31 46.2 16.3 c 704
2007-01-15 09:48:02 C 10 46 28.90 +06 57 05.4 15.5 c 704
2007-01-15 10:06:23 C 10 46 28.21 +06 57 39.2 16.3 c 704
2007-01-15 10:24:56 C 10 46 27.62 +06 58 13.9 16.4 c 704
2007-01-15 10:43:42 C 10 46 26.87 +06 58 47.6 15.8 c 704
2007-01-15 11:02:43 C 10 46 26.17 +06 59 22.4 15.3 c 704
2007-01-16 07:08:04 C 10 45 47.09 +07 36 25.8 15.6 c 704
2007-01-16 07:27:10 C 10 45 46.37 +07 37 01.2 15.9 c 704
2007-01-16 07:45:38 C 10 45 45.65 +07 37 35.4 15.8 c 704
2007-01-16 08:04:35 C 10 45 44.94 +07 38 10.7 15.8 c 704
2007-01-16 08:23:05 C 10 45 44.23 +07 38 45.2 15.7 c 704
2007-01-20 04:02:11 C 10 42 03.87 +10 32 33.1 15.5 r 130
2007-01-20 04:02:59 C 10 42 03.83 +10 32 34.8 15.5 r 130
2007-01-20 04:04:09 C 10 42 03.77 +10 32 37.0 15.6 r 130
2007-01-20 04:04:55 C 10 42 03.73 +10 32 38.5 15.6 r 130
2007-01-21 08:07:32 C 10 40 46.10 +11 27 06.3 15.2 c 704
2007-01-21 08:25:29 C 10 40 45.16 +11 27 41.7 15.5 c 704
2007-01-21 08:43:27 C 10 40 44.19 +11 28 17.0 15.8 c 704
2007-01-21 09:01:37 C 10 40 43.26 +11 28 52.2 16.1 c 704
2007-01-21 09:19:41 C 10 40 42.29 +11 29 27.5 15.7 c 704
2007-01-24 07:54:00 C 10 37 01.59 +13 47 52.4 15.5 c 704
2007-01-24 08:18:32 C 10 37 00.12 +13 48 41.4 15.6 c 704
2007-01-24 08:39:16 C 10 36 58.87 +13 49 22.0 15.7 c 704
2007-01-24 09:00:16 C 10 36 57.59 +13 50 03.3 15.8 c 704
2007-01-24 09:22:03 C 10 36 56.27 +13 50 46.4 15.5 c 704
2007-01-24 22:24:53 C 10 36 12.21 +14 16 20.8 15.5 r 084
2007-01-24 22:27:02 C 10 36 12.07 +14 16 25.5 15.7 r 084
2007-01-25 02:28:13 C 10 35 57.56 +14 24 20.3 14.9 r 084
2007-01-25 02:30:22 C 10 35 57.40 +14 24 24.7 15.0 r 084
2007-01-25 10:21:13 C 10 35 29.95 +14 39 59.4 r H45
2007-01-25 10:21:50 C 10 35 29.90 +14 40 00.6 r H45
2007-01-25 10:24:38 C 10 35 29.73 +14 40 06.0 r H45
2007-01-25 10:25:43 C 10 35 29.66 +14 40 08.3 r H45
2007-01-25 10:27:00 C 10 35 29.59 +14 40 10.7 r H45
2007-01-26 10:29:17 C 10 34 03.90 +15 27 33.4 o 691
2007-01-26 10:55:19 C 10 34 02.19 +15 28 24.6 o 691
2007-01-26 11:21:43 C 10 34 00.47 +15 29 16.4 o 691
2007-01-26 21:51:40 C 10 33 23.17 +15 49 50.8 c A24
2007-01-26 21:53:09 C 10 33 23.08 +15 49 53.4 c A24
2007-01-27 01:09:11 C 10 33 10.26 +15 56 20.4 c A24
2007-01-27 01:10:39 C 10 33 10.16 +15 56 23.2 c A24
2007-01-27 02:00:55 C 10 33 06.84 +15 58 01.8 c A24
2007-01-27 02:02:24 C 10 33 06.74 +15 58 04.7 c A24
2007-01-27 08:17:04 C 10 32 43.79 +16 10 23.5 o 699
2007-01-27 08:42:05 C 10 32 42.11 +16 11 12.7 o 699
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)