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
2022-02-08 06:43:52 S 10 52 48.811 +24 09 12.06 V C57
2022-02-08 06:43:52 s 1 -190238.14 9 +221625.14 5330.0 C57
2022-02-08 06:49:50 C 10 52 20.19 +24 08 34.5 V 703
2022-02-08 06:53:52 S 10 52 47.916 +24 09 27.00 V C57
2022-02-08 06:53:52 s 1 -190412.59 8 +221040.50 2430.0 C57
2022-02-08 07:03:52 S 10 52 47.129 +24 09 43.74 V C57
2022-02-08 07:03:52 s 1 -190586.09 9 +220454.75 4920.0 C57
2022-02-08 07:13:52 S 10 52 46.301 +24 10 00.16 V C57
2022-02-08 07:13:52 s 1 -190758.64 8 +219867.89 2780.0 C57
2022-02-08 07:23:52 S 10 52 45.497 +24 10 16.03 V C57
2022-02-08 07:23:52 s 1 -190930.24 1 +219279.91 6010.0 C57
2022-02-08 07:33:52 S 10 52 44.726 +24 10 31.73 V C57
2022-02-08 07:33:52 s 1 -191100.87 4 +218690.83 4590.0 C57
2022-02-08 07:43:52 S 10 52 43.894 +24 10 47.17 V C57
2022-02-08 07:43:52 s 1 -191270.54 5 +218100.63 8490.0 C57
2022-02-08 07:53:52 S 10 52 43.102 +24 11 03.88 V C57
2022-02-08 07:53:52 s 1 -191439.24 8 +217509.32 7710.0 C57
2022-02-08 08:03:52 S 10 52 42.295 +24 11 19.46 V C57
2022-02-08 08:03:52 s 1 -191606.98 0 +216916.89 2220.0 C57
2022-02-08 08:13:52 S 10 52 41.393 +24 11 36.35 V C57
2022-02-08 08:13:52 s 1 -191773.73 8 +216323.36 2010.0 C57
2022-02-08 08:23:52 S 10 52 40.577 +24 11 52.62 V C57
2022-02-08 08:23:52 s 1 -191939.51 7 +215728.71 7070.0 C57
2022-02-08 08:33:52 S 10 52 39.756 +24 12 07.92 V C57
2022-02-08 08:33:52 s 1 -192104.31 4 +215132.94 7370.0 C57
2022-02-08 08:43:52 S 10 52 38.959 +24 12 24.41 V C57
2022-02-08 08:43:52 s 1 -192268.12 4 +214536.07 2900.0 C57
2022-02-08 08:53:52 S 10 52 38.146 +24 12 40.79 V C57
2022-02-08 08:53:52 s 1 -192430.94 5 +213938.07 3640.0 C57
2022-02-08 09:03:52 S 10 52 37.370 +24 12 56.66 V C57
2022-02-08 09:03:52 s 1 -192592.77 2 +213338.97 9570.0 C57
2022-02-08 09:13:52 S 10 52 36.619 +24 13 11.78 V C57
2022-02-08 09:13:52 s 1 -192753.60 1 +212738.75 680.0 C57
2022-02-08 09:23:52 S 10 52 35.760 +24 13 27.98 V C57
2022-02-08 09:23:52 s 1 -192913.42 8 +212137.42 6960.0 C57
2022-02-08 09:33:52 S 10 52 34.925 +24 13 45.05 V C57
2022-02-08 09:33:52 s 1 -193072.25 0 +211534.97 8370.0 C57
2022-02-08 09:43:52 S 10 52 34.087 +24 14 00.78 V C57
2022-02-08 09:43:52 s 1 -193230.06 2 +210931.40 4910.0 C57
2022-02-08 09:53:52 S 10 52 33.250 +24 14 16.80 V C57
2022-02-08 09:53:52 s 1 -193386.86 0 +210326.72 6550.0 C57
2022-02-08 10:03:52 S 10 52 32.448 +24 14 32.68 V C57
2022-02-08 10:03:52 s 1 -193542.64 1 +209720.93 3290.0 C57
2022-02-08 10:13:52 S 10 52 31.594 +24 14 49.31 V C57
2022-02-08 10:13:52 s 1 -193697.40 0 +209114.02 5100.0 C57
2022-02-08 10:23:52 S 10 52 30.826 +24 15 05.11 V C57
2022-02-08 10:23:52 s 1 -193851.13 3 +208505.99 1960.0 C57
2022-02-08 10:33:52 S 10 52 29.990 +24 15 21.20 V C57
2022-02-08 10:33:52 s 1 -194003.83 7 +207896.84 3860.0 C57
2022-02-08 10:43:52 S 10 52 29.258 +24 15 37.15 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)