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
2022-02-09 06:53:52 s 1 -203430.27 6 +125217.50 7680.0 C57
2022-02-09 07:03:52 S 10 50 47.484 +24 47 58.45 V C57
2022-02-09 07:03:52 s 1 -203417.87 4 +124472.25 830.0 C57
2022-02-09 07:13:52 S 10 50 46.678 +24 48 14.47 V C57
2022-02-09 07:13:52 s 1 -203403.74 1 +123725.93 5970.0 C57
2022-02-09 07:23:52 S 10 50 45.792 +24 48 29.34 V C57
2022-02-09 07:23:52 s 1 -203387.87 0 +122978.56 3050.0 C57
2022-02-09 07:33:52 S 10 50 44.995 +24 48 45.18 V C57
2022-02-09 07:33:52 s 1 -203370.25 4 +122230.12 2050.0 C57
2022-02-09 07:43:52 S 10 50 44.174 +24 49 00.52 V C57
2022-02-09 07:43:52 s 1 -203350.88 4 +121480.63 2940.0 C57
2022-02-09 07:53:52 S 10 50 43.291 +24 49 16.14 V C57
2022-02-09 07:53:52 s 1 -203329.75 3 +120730.09 5670.0 C57
2022-02-09 08:03:52 S 10 50 42.490 +24 49 32.63 V C57
2022-02-09 08:03:52 s 1 -203306.85 3 +119978.49 220.0 C57
2022-02-09 08:13:52 S 10 50 41.582 +24 49 47.96 V C57
2022-02-09 08:13:52 s 1 -203282.17 5 +119225.84 6560.0 C57
2022-02-09 08:23:52 S 10 50 40.745 +24 50 03.73 V C57
2022-02-09 08:23:52 s 1 -203255.71 2 +118472.14 4630.0 C57
2022-02-09 08:33:52 S 10 50 39.864 +24 50 19.32 V C57
2022-02-09 08:33:52 s 1 -203227.45 6 +117717.40 4420.0 C57
2022-02-09 08:43:52 S 10 50 39.041 +24 50 35.20 V C57
2022-02-09 08:43:52 s 1 -203197.39 9 +116961.61 5890.0 C57
2022-02-09 08:53:52 S 10 50 38.189 +24 50 50.96 V C57
2022-02-09 08:53:52 s 1 -203165.53 2 +116204.77 9000.0 C57
2022-02-09 09:03:52 S 10 50 37.418 +24 51 06.73 V C57
2022-02-09 09:03:52 s 1 -203131.84 7 +115446.89 3720.0 C57
2022-02-09 09:13:52 S 10 50 36.540 +24 51 23.15 V C57
2022-02-09 09:13:52 s 1 -203096.33 7 +114687.98 0.0 C57
2022-02-09 09:23:52 S 10 50 35.638 +24 51 37.19 V C57
2022-02-09 09:23:52 s 1 -203058.99 2 +113928.02 7830.0 C57
2022-02-09 09:33:52 S 10 50 34.824 +24 51 53.68 V C57
2022-02-09 09:33:52 s 1 -203019.80 5 +113167.03 7150.0 C57
2022-02-09 09:43:52 S 10 50 33.953 +24 52 09.95 V C57
2022-02-09 09:43:52 s 1 -202978.76 7 +112405.01 7940.0 C57
2022-02-09 09:53:52 S 10 50 33.070 +24 52 25.64 V C57
2022-02-09 09:53:52 s 1 -202935.86 9 +111641.95 150.0 C57
2022-02-09 10:03:52 S 10 50 32.258 +24 52 41.16 V C57
2022-02-09 10:03:52 s 1 -202891.10 4 +110877.87 3760.0 C57
2022-02-09 10:13:52 S 10 50 31.426 +24 52 57.25 V C57
2022-02-09 10:13:52 s 1 -202844.46 3 +110112.75 8720.0 C57
2022-02-09 10:23:52 S 10 50 30.540 +24 53 12.19 V C57
2022-02-09 10:23:52 s 1 -202795.93 6 +109346.62 5010.0 C57
2022-02-09 10:33:52 S 10 50 29.738 +24 53 28.14 V C57
2022-02-09 10:33:52 s 1 -202745.51 7 +108579.46 2570.0 C57
2022-02-09 10:43:52 S 10 50 28.910 +24 53 44.20 V C57
2022-02-09 10:43:52 s 1 -202693.19 5 +107811.27 1370.0 C57
2022-02-09 10:53:52 S 10 50 28.039 +24 54 00.07 V C57
2022-02-09 10:53:52 s 1 -202638.96 2 +107042.08 1390.0 C57
2022-02-09 11:03:52 S 10 50 27.142 +24 54 14.94 V C57
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)