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
2022-02-23 11:43:51 S 10 24 58.190 +32 22 35.00 V C57
2022-02-23 11:43:51 s 1 -193304.01 1 +168478.79 7190.0 C57
2022-02-23 11:53:51 S 10 24 57.391 +32 22 46.13 V C57
2022-02-23 11:53:51 s 1 -193394.66 9 +167789.39 6390.0 C57
2022-02-23 12:03:51 S 10 24 56.575 +32 22 55.78 V C57
2022-02-23 12:03:51 s 1 -193483.94 8 +167098.80 9080.0 C57
2022-02-23 12:13:51 S 10 24 55.651 +32 23 05.96 V C57
2022-02-23 12:13:51 s 1 -193571.84 2 +166407.01 5210.0 C57
2022-02-23 12:23:51 S 10 24 54.713 +32 23 14.93 V C57
2022-02-23 12:23:51 s 1 -193658.34 4 +165714.04 4780.0 C57
2022-02-23 12:33:51 S 10 24 53.861 +32 23 24.97 V C57
2022-02-23 12:33:51 s 1 -193743.44 9 +165019.87 7750.0 C57
2022-02-23 12:43:51 S 10 24 52.999 +32 23 36.67 V C57
2022-02-23 12:43:51 s 1 -193827.15 0 +164324.51 4090.0 C57
2022-02-23 12:53:51 S 10 24 52.109 +32 23 47.00 V C57
2022-02-23 12:53:51 s 1 -193909.44 1 +163627.96 3770.0 C57
2022-02-23 13:03:51 S 10 24 51.293 +32 23 54.92 V C57
2022-02-23 13:03:51 s 1 -193990.31 6 +162930.23 6770.0 C57
2022-02-23 13:13:51 S 10 24 50.366 +32 24 04.93 V C57
2022-02-23 13:13:51 s 1 -194069.76 9 +162231.30 3070.0 C57
2022-02-23 13:23:51 S 10 24 49.517 +32 24 16.74 V C57
2022-02-23 13:23:51 s 1 -194147.79 3 +161531.19 2620.0 C57
2022-02-23 13:33:51 S 10 24 48.624 +32 24 26.96 V C57
2022-02-23 13:33:51 s 1 -194224.38 1 +160829.88 5410.0 C57
2022-02-23 13:43:51 S 10 24 47.758 +32 24 36.76 V C57
2022-02-23 13:43:51 s 1 -194299.52 8 +160127.39 1410.0 C57
2022-02-23 13:53:51 S 10 24 46.829 +32 24 46.15 V C57
2022-02-23 13:53:51 s 1 -194373.22 7 +159423.71 580.0 C57
2022-02-23 14:03:51 S 10 24 45.984 +32 24 55.55 V C57
2022-02-23 14:03:51 s 1 -194445.47 1 +158718.84 2910.0 C57
2022-02-23 14:13:51 S 10 24 45.187 +32 25 06.85 V C57
2022-02-23 14:13:51 s 1 -194516.25 5 +158012.79 8350.0 C57
2022-02-23 14:23:51 S 10 24 44.278 +32 25 17.00 V C57
2022-02-23 14:23:51 s 1 -194585.57 1 +157305.54 6890.0 C57
2022-02-23 14:33:51 S 10 24 43.428 +32 25 25.79 V C57
2022-02-23 14:33:51 s 1 -194653.41 3 +156597.11 8480.0 C57
2022-02-23 14:43:51 S 10 24 42.466 +32 25 35.08 V C57
2022-02-23 14:43:51 s 1 -194719.77 4 +155887.50 3120.0 C57
2022-02-23 14:53:51 S 10 24 41.611 +32 25 46.85 V C57
2022-02-23 14:53:51 s 1 -194784.64 7 +155176.70 750.0 C57
2022-02-23 15:03:51 S 10 24 40.836 +32 25 56.86 V C57
2022-02-23 15:03:51 s 1 -194848.02 7 +154464.72 1360.0 C57
2022-02-23 15:13:51 S 10 24 39.910 +32 26 06.36 V C57
2022-02-23 15:13:51 s 1 -194909.90 6 +153751.55 4920.0 C57
2022-02-23 15:23:51 S 10 24 39.036 +32 26 16.80 V C57
2022-02-23 15:23:51 s 1 -194970.27 7 +153037.19 1390.0 C57
2022-02-23 15:33:51 S 10 24 38.148 +32 26 25.80 V C57
2022-02-23 15:33:51 s 1 -195029.13 4 +152321.66 750.0 C57
2022-02-23 15:43:51 S 10 24 37.294 +32 26 36.89 V C57
2022-02-23 15:43:51 s 1 -195086.47 0 +151604.94 2960.0 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)