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
2022-02-24 05:03:51 S 10 23 27.523 +32 39 41.65 V C57
2022-02-24 05:03:51 s 1 -194058.88 7 +90533.966 440.0 C57
2022-02-24 05:13:51 S 10 23 26.561 +32 39 50.90 V C57
2022-02-24 05:13:51 s 1 -193966.17 3 +89725.889 6720.0 C57
2022-02-24 05:23:51 S 10 23 25.682 +32 40 00.12 V C57
2022-02-24 05:23:51 s 1 -193871.21 8 +88916.782 2710.0 C57
2022-02-24 05:33:51 S 10 23 24.838 +32 40 09.55 V C57
2022-02-24 05:33:51 s 1 -193774.00 8 +88106.648 8380.0 C57
2022-02-24 05:43:51 S 10 23 23.926 +32 40 20.89 V C57
2022-02-24 05:43:51 s 1 -193674.53 4 +87295.491 3670.0 C57
2022-02-24 05:53:51 S 10 23 23.134 +32 40 29.64 V C57
2022-02-24 05:53:51 s 1 -193572.78 5 +86483.314 8530.0 C57
2022-02-24 06:03:51 S 10 23 22.253 +32 40 38.64 V C57
2022-02-24 06:03:51 s 1 -193468.74 8 +85670.122 2920.0 C57
2022-02-24 06:13:51 S 10 23 21.310 +32 40 48.58 V C57
2022-02-24 06:13:51 s 1 -193362.41 3 +84855.918 6770.0 C57
2022-02-24 06:23:51 S 10 23 20.443 +32 40 57.72 V C57
2022-02-24 06:23:51 s 1 -193253.76 8 +84040.707 60.0 C57
2022-02-24 06:33:51 S 10 23 19.637 +32 41 08.12 V C57
2022-02-24 06:33:51 s 1 -193142.80 1 +83224.492 2720.0 C57
2022-02-24 06:43:51 S 10 23 18.708 +32 41 17.59 V C57
2022-02-24 06:43:51 s 1 -193029.50 1 +82407.279 4710.0 C57
2022-02-24 06:53:51 S 10 23 17.851 +32 41 26.88 V C57
2022-02-24 06:53:51 s 1 -192913.85 6 +81589.071 5970.0 C57
2022-02-24 07:03:51 S 10 23 17.045 +32 41 35.38 V C57
2022-02-24 07:03:51 s 1 -192795.85 5 +80769.872 6460.0 C57
2022-02-24 07:13:51 S 10 23 16.150 +32 41 45.71 V C57
2022-02-24 07:13:51 s 1 -192675.48 5 +79949.688 6120.0 C57
2022-02-24 07:23:51 S 10 23 15.290 +32 41 55.90 V C57
2022-02-24 07:23:51 s 1 -192552.73 5 +79128.523 4910.0 C57
2022-02-24 07:33:51 S 10 23 14.450 +32 42 06.05 V C57
2022-02-24 07:33:51 s 1 -192427.59 3 +78306.381 2760.0 C57
2022-02-24 07:43:51 S 10 23 13.534 +32 42 15.16 V C57
2022-02-24 07:43:51 s 1 -192300.04 6 +77483.266 9640.0 C57
2022-02-24 07:53:51 S 10 23 12.667 +32 42 23.87 V C57
2022-02-24 07:53:51 s 1 -192170.08 3 +76659.185 5490.0 C57
2022-02-24 08:03:51 S 10 23 11.794 +32 42 33.95 V C57
2022-02-24 08:03:51 s 1 -192037.69 2 +75834.141 250.0 C57
2022-02-24 08:13:51 S 10 23 10.906 +32 42 44.57 V C57
2022-02-24 08:13:51 s 1 -191902.85 9 +75008.140 3880.0 C57
2022-02-24 08:23:51 S 10 23 10.085 +32 42 53.42 V C57
2022-02-24 08:23:51 s 1 -191765.57 3 +74181.186 6320.0 C57
2022-02-24 08:33:51 S 10 23 09.233 +32 43 01.74 V C57
2022-02-24 08:33:51 s 1 -191625.82 2 +73353.285 7510.0 C57
2022-02-24 08:43:51 S 10 23 08.280 +32 43 11.60 V C57
2022-02-24 08:43:51 s 1 -191483.59 2 +72524.442 7410.0 C57
2022-02-24 08:53:51 S 10 23 07.450 +32 43 21.68 V C57
2022-02-24 08:53:51 s 1 -191338.87 2 +71694.661 5970.0 C57
2022-02-24 09:03:51 S 10 23 06.622 +32 43 32.09 V C57
2022-02-24 09:03:51 s 1 -191191.64 9 +70863.950 3120.0 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)