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
2022-02-15 06:43:51 S 10 40 45.086 +28 22 37.45 V C57
2022-02-15 06:43:51 s 1 +181567.34 3 +232737.72 3620.0 C57
2022-02-15 06:53:51 S 10 40 44.321 +28 22 51.13 V C57
2022-02-15 06:53:51 s 1 +181372.82 2 +233311.17 5400.0 C57
2022-02-15 07:33:51 S 10 40 41.604 +28 23 48.48 V C57
2022-02-15 07:33:51 s 1 +180585.50 1 +235592.94 6430.0 C57
2022-02-15 16:53:51 S 10 40 02.870 +28 36 50.15 V C57
2022-02-15 16:53:51 s 1 +168129.63 2 +265536.65 1000.0 C57
2022-02-15 17:03:51 S 10 40 02.186 +28 37 02.89 V C57
2022-02-15 17:03:51 s 1 +167884.76 8 +266037.78 8610.0 C57
2022-02-15 17:13:51 S 10 40 01.502 +28 37 17.62 V C57
2022-02-15 17:13:51 s 1 +167639.17 4 +266537.74 3460.0 C57
2022-02-15 17:23:51 S 10 40 00.739 +28 37 31.04 V C57
2022-02-15 17:23:51 s 1 +167392.85 4 +267036.53 5540.0 C57
2022-02-15 17:33:51 S 10 40 00.082 +28 37 45.01 V C57
2022-02-15 17:33:51 s 1 +167145.81 2 +267534.16 4890.0 C57
2022-02-15 17:43:51 S 10 39 59.364 +28 37 59.41 V C57
2022-02-15 17:43:51 s 1 +166898.04 9 +268030.63 1500.0 C57
2022-02-15 17:53:51 S 10 39 58.634 +28 38 11.87 V C57
2022-02-15 17:53:51 s 1 +166649.56 8 +268525.93 5400.0 C57
2022-02-15 18:03:51 S 10 39 57.965 +28 38 27.17 V C57
2022-02-15 18:03:51 s 1 +166400.37 3 +269020.07 6590.0 C57
2022-02-15 18:13:51 S 10 39 57.264 +28 38 39.80 V C57
2022-02-15 18:13:51 s 1 +166150.46 6 +269513.05 5090.0 C57
2022-02-15 18:23:51 S 10 39 56.566 +28 38 54.85 V C57
2022-02-15 18:23:51 s 1 +165899.84 9 +270004.87 900.0 C57
2022-02-15 18:33:51 S 10 39 55.795 +28 39 09.00 V C57
2022-02-15 18:33:51 s 1 +165648.52 6 +270495.53 4040.0 C57
2022-02-15 18:43:51 S 10 39 55.157 +28 39 20.99 V C57
2022-02-15 18:43:51 s 1 +165396.50 0 +270985.03 4530.0 C57
2022-02-15 18:53:51 S 10 39 54.497 +28 39 36.50 V C57
2022-02-15 18:53:51 s 1 +165143.77 2 +271473.36 2370.0 C57
2022-02-15 19:03:51 S 10 39 53.712 +28 39 49.18 V C57
2022-02-15 19:03:51 s 1 +164890.34 6 +271960.54 7570.0 C57
2022-02-15 19:13:51 S 10 39 53.081 +28 40 03.11 V C57
2022-02-15 19:13:51 s 1 +164636.22 5 +272446.56 150.0 C57
2022-02-15 19:23:51 S 10 39 52.315 +28 40 17.29 V C57
2022-02-15 19:23:51 s 1 +164381.41 1 +272931.43 110.0 C57
2022-02-15 19:33:51 S 10 39 51.569 +28 40 30.94 V C57
2022-02-15 19:33:51 s 1 +164125.90 7 +273415.13 7480.0 C57
2022-02-15 19:43:51 S 10 39 50.971 +28 40 45.48 V C57
2022-02-15 19:43:51 s 1 +163869.71 5 +273897.68 2250.0 C57
2022-02-15 19:53:51 S 10 39 50.249 +28 40 58.15 V C57
2022-02-15 19:53:51 s 1 +163612.83 9 +274379.08 4450.0 C57
2022-02-15 20:03:51 S 10 39 49.495 +28 41 13.78 V C57
2022-02-15 20:03:51 s 1 +163355.28 0 +274859.32 4090.0 C57
2022-02-15 20:13:51 S 10 39 48.761 +28 41 27.42 V C57
2022-02-15 20:13:51 s 1 +163097.04 2 +275338.40 1160.0 C57
2022-02-15 20:23:51 S 10 39 48.077 +28 41 39.52 V C57
2022-02-15 20:23:51 s 1 +162838.12 8 +275816.34 5700.0 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)