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
2021-12-22 02:53:54 S 11 07 41.525 -03 14 48.73 V C57
2021-12-22 02:53:54 s 1 +70140.540 0 +369171.68 3250.0 C57
2021-12-22 03:03:54 S 11 07 42.010 -03 14 39.44 V C57
2021-12-22 03:03:54 s 1 +69802.520 0 +369363.49 1950.0 C57
2021-12-22 03:13:54 S 11 07 42.461 -03 14 32.50 V C57
2021-12-22 03:13:54 s 1 +69464.305 0 +369554.31 80.0 C57
2021-12-22 03:23:54 S 11 07 42.912 -03 14 25.01 V C57
2021-12-22 03:23:54 s 1 +69125.895 0 +369744.13 7630.0 C57
2021-12-22 04:03:54 S 11 07 44.623 -03 13 51.78 V C57
2021-12-22 04:03:54 s 1 +67770.334 0 +370493.44 2240.0 C57
2021-12-22 04:23:54 S 11 07 45.504 -03 13 34.97 V C57
2021-12-22 04:23:54 s 1 +67091.416 0 +370862.12 1240.0 C57
2021-12-22 04:33:54 S 11 07 45.989 -03 13 28.24 V C57
2021-12-22 04:33:54 s 1 +66751.676 0 +371044.97 4930.0 C57
2021-12-22 04:43:54 S 11 07 46.430 -03 13 20.21 V C57
2021-12-22 04:43:54 s 1 +66411.751 0 +371226.83 8090.0 C57
2021-12-22 04:53:54 S 11 07 46.913 -03 13 13.62 V C57
2021-12-22 04:53:54 s 1 +66071.642 0 +371407.69 710.0 C57
2021-12-22 05:03:54 S 11 07 47.422 -03 13 02.75 V C57
2021-12-22 05:03:54 s 1 +65731.349 0 +371587.56 2810.0 C57
2021-12-22 05:13:54 S 11 07 47.760 -03 12 55.91 V C57
2021-12-22 05:13:54 s 1 +65390.874 0 +371766.44 4400.0 C57
2021-12-22 05:23:54 S 11 07 48.185 -03 12 47.38 V C57
2021-12-22 05:23:54 s 1 +65050.217 0 +371944.32 5460.0 C57
2021-12-22 05:33:54 S 11 07 48.614 -03 12 40.32 V C57
2021-12-22 05:33:54 s 1 +64709.380 0 +372121.21 6020.0 C57
2021-12-22 05:43:54 S 11 07 49.123 -03 12 32.26 V C57
2021-12-22 05:43:54 s 1 +64368.365 0 +372297.12 6060.0 C57
2021-12-22 05:53:54 S 11 07 49.570 -03 12 24.23 V C57
2021-12-22 05:53:54 s 1 +64027.171 0 +372472.02 5610.0 C57
2021-12-22 06:03:54 S 11 07 50.124 -03 12 14.69 V C57
2021-12-22 06:03:54 s 1 +63685.800 0 +372645.94 4650.0 C57
2021-12-22 06:13:54 S 11 07 50.525 -03 12 07.78 V C57
2021-12-22 06:13:54 s 1 +63344.254 0 +372818.87 3210.0 C57
2021-12-22 06:43:54 S 11 07 51.682 -03 11 42.86 V C57
2021-12-22 06:43:54 s 1 +62318.570 0 +373331.72 5950.0 C57
2021-12-22 06:53:54 S 11 07 52.099 -03 11 35.99 V C57
2021-12-22 06:53:54 s 1 +61976.330 0 +373500.69 2570.0 C57
2021-12-22 07:03:54 S 11 07 52.658 -03 11 28.28 V C57
2021-12-22 07:03:54 s 1 +61633.921 0 +373668.67 8720.0 C57
2021-12-22 07:13:54 S 11 07 53.141 -03 11 19.36 V C57
2021-12-22 07:13:54 s 1 +61291.341 0 +373835.66 4400.0 C57
2021-12-22 07:23:54 S 11 07 53.585 -03 11 11.11 V C57
2021-12-22 07:23:54 s 1 +60948.594 0 +374001.67 9620.0 C57
2021-12-22 07:33:54 S 11 07 53.976 -03 11 03.37 V C57
2021-12-22 07:33:54 s 1 +60605.679 0 +374166.68 4380.0 C57
2021-12-22 07:43:54 S 11 07 54.494 -03 10 54.95 V C57
2021-12-22 07:43:54 s 1 +60262.597 0 +374330.71 8690.0 C57
2021-12-22 07:53:54 S 11 07 54.881 -03 10 46.85 V C57
2021-12-22 07:53:54 s 1 +59919.350 0 +374493.76 2540.0 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)