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
2006-07-21 08:14:52 C 23 05 33.62 +04 17 00.6 14.4 c 704
2006-07-21 08:29:40 C 23 05 37.69 +04 16 27.7 14.7 c 704
2006-07-21 08:44:36 C 23 05 41.85 +04 15 54.5 14.0 c 704
2006-07-24 08:08:21 C 23 28 07.42 +01 15 14.1 r 703
2006-07-24 08:16:03 C 23 28 10.02 +01 14 52.0 r 703
2006-07-24 08:23:46 C 23 28 12.54 +01 14 29.8 r 703
2006-07-24 08:31:24 C 23 28 15.13 +01 14 08.0 r 703
2006-07-25 08:31:46 C 23 36 46.27 +00 02 20.8 r H45
2006-07-25 08:32:19 C 23 36 46.46 +00 02 19.1 r H45
2006-07-25 08:33:13 C 23 36 46.78 +00 02 16.5 r H45
2006-07-25 08:33:59 C 23 36 47.07 +00 02 13.9 r H45
2006-07-25 08:35:11 C 23 36 47.49 +00 02 10.2 r H45
2006-07-31 16:22:52 C 00 44 44.37 -09 44 48.4 r E12
2006-07-31 16:43:52 C 00 44 55.28 -09 46 24.2 r E12
2006-07-31 17:04:48 C 00 45 06.12 -09 47 59.5 r E12
2006-07-31 17:25:43 C 00 45 16.95 -09 49 34.9 r E12
2006-08-06 17:24:33 C 02 12 07.74 -20 54 44.7 r E12
2006-08-06 17:34:23 C 02 12 13.96 -20 55 27.3 r E12
2006-08-06 17:44:17 C 02 12 20.26 -20 56 09.9 r E12
2006-08-06 17:54:27 C 02 12 26.71 -20 56 53.7 r E12
2006-08-07 07:54:02 C 02 21 34.30 -21 55 53.3 r I77
2006-08-07 07:54:45 C 02 21 34.75 -21 55 56.1 r I77
2006-08-07 07:55:30 C 02 21 35.33 -21 55 59.8 r I77
2006-11-19 11:42:45 C 10 02 05.64 -16 32 25.4 r 703
2006-11-19 11:52:14 C 10 02 06.32 -16 32 20.6 r 703
2006-11-19 12:01:52 C 10 02 07.04 -16 32 15.7 r 703
2006-11-19 12:11:21 C 10 02 07.69 -16 32 10.8 r 703
2006-12-18 09:56:00 C 10 43 08.90 -08 35 20.5 16.0 c 704
2006-12-18 10:14:53 C 10 43 09.50 -08 35 02.4 16.3 c 704
2006-12-18 10:34:21 C 10 43 10.14 -08 34 43.8 16.5 c 704
2006-12-18 10:53:14 C 10 43 10.81 -08 34 25.7 16.6 c 704
2006-12-21 11:30:59 C 10 45 39.34 -07 22 07.5 r 703
2006-12-21 11:40:29 C 10 45 39.60 -07 21 57.5 r 703
2006-12-21 11:49:57 C 10 45 39.81 -07 21 47.7 r 703
2006-12-21 11:59:27 C 10 45 40.10 -07 21 37.9 r 703
2006-12-24 11:27:27 C 10 47 39.84 -06 04 22.6 r 703
2006-12-24 11:38:25 C 10 47 40.09 -06 04 10.3 r 703
2006-12-24 11:49:25 C 10 47 40.30 -06 03 57.9 r 703
2006-12-24 12:00:30 C 10 47 40.52 -06 03 45.4 r 703
2006-12-26 01:33:14 C 10 48 32.37 -05 20 40.0 16.0 r 084
2006-12-26 01:35:23 C 10 48 32.40 -05 20 37.4 16.0 r 084
2006-12-30 03:19:59 C 10 50 09.09 -03 19 28.2 15.4 r 084
2006-12-30 03:22:08 C 10 50 09.11 -03 19 25.4 15.5 r 084
2007-01-02 11:51:06 C 10 50 46.31 -01 29 40.1 o 644
2007-01-02 12:06:40 C 10 50 46.29 -01 29 18.2 o 644
2007-01-02 12:22:12 C 10 50 46.28 -01 28 56.1 o 644
2007-01-08 11:48:14 C 10 50 08.28 +02 09 26.0 r H45
2007-01-08 11:49:39 C 10 50 08.28 +02 09 28.2 r H45
2007-01-08 11:50:30 C 10 50 08.27 +02 09 29.6 r H45
2007-01-08 11:51:59 C 10 50 08.25 +02 09 32.1 r H45
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)