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
2022-02-16 06:13:51 S 10 39 06.014 +28 55 10.38 V C57
2022-02-16 06:13:51 s 1 +146453.52 7 +301995.48 4950.0 C57
2022-02-16 06:23:51 S 10 39 05.239 +28 55 23.02 V C57
2022-02-16 06:23:51 s 1 +146158.45 9 +302405.36 6010.0 C57
2022-02-16 06:33:51 S 10 39 04.601 +28 55 38.42 V C57
2022-02-16 06:33:51 s 1 +145862.85 8 +302814.12 5130.0 C57
2022-02-16 06:43:51 S 10 39 03.768 +28 55 51.20 V C57
2022-02-16 06:43:51 s 1 +145566.72 5 +303221.77 2330.0 C57
2022-02-16 06:53:51 S 10 39 03.103 +28 56 04.63 V C57
2022-02-16 06:53:51 s 1 +145270.06 3 +303628.31 7620.0 C57
2022-02-16 07:03:51 S 10 39 02.422 +28 56 19.54 V C57
2022-02-16 07:03:51 s 1 +144972.87 2 +304033.73 1000.0 C57
2022-02-16 07:13:51 S 10 39 01.584 +28 56 33.22 V C57
2022-02-16 07:13:51 s 1 +144675.15 7 +304438.04 2500.0 C57
2022-02-16 07:23:51 S 10 39 00.943 +28 56 45.49 V C57
2022-02-16 07:23:51 s 1 +144376.91 8 +304841.23 2100.0 C57
2022-02-16 07:33:51 S 10 39 00.170 +28 57 00.40 V C57
2022-02-16 07:33:51 s 1 +144078.15 7 +305243.32 9830.0 C57
2022-02-16 07:43:51 S 10 38 59.366 +28 57 12.71 V C57
2022-02-16 07:43:51 s 1 +143778.87 7 +305644.29 5690.0 C57
2022-02-16 07:53:51 S 10 38 58.812 +28 57 26.96 V C57
2022-02-16 07:53:51 s 1 +143479.08 0 +306044.15 9680.0 C57
2022-02-16 08:03:51 S 10 38 58.032 +28 57 39.96 V C57
2022-02-16 08:03:51 s 1 +143178.76 7 +306442.91 1830.0 C57
2022-02-16 08:13:51 S 10 38 57.286 +28 57 53.89 V C57
2022-02-16 08:13:51 s 1 +142877.94 1 +306840.55 2140.0 C57
2022-02-16 08:23:51 S 10 38 56.578 +28 58 07.25 V C57
2022-02-16 08:23:51 s 1 +142576.60 4 +307237.08 610.0 C57
2022-02-16 08:33:51 S 10 38 55.829 +28 58 20.57 V C57
2022-02-16 08:33:51 s 1 +142274.75 8 +307632.51 7250.0 C57
2022-02-16 08:43:51 S 10 38 55.123 +28 58 35.72 V C57
2022-02-16 08:43:51 s 1 +141972.40 4 +308026.83 2080.0 C57
2022-02-16 08:53:51 S 10 38 54.367 +28 58 48.47 V C57
2022-02-16 08:53:51 s 1 +141669.54 5 +308420.04 5100.0 C57
2022-02-16 09:23:51 S 10 38 52.176 +28 59 29.36 V C57
2022-02-16 09:23:51 s 1 +140757.95 7 +309593.04 3400.0 C57
2022-02-16 09:33:51 S 10 38 51.521 +28 59 42.83 V C57
2022-02-16 09:33:51 s 1 +140453.09 6 +309981.83 9280.0 C57
2022-02-16 09:43:51 S 10 38 50.830 +28 59 56.62 V C57
2022-02-16 09:43:51 s 1 +140147.74 1 +310369.51 3380.0 C57
2022-02-16 09:53:51 S 10 38 49.963 +29 00 09.54 V C57
2022-02-16 09:53:51 s 1 +139841.89 2 +310756.09 5730.0 C57
2022-02-16 10:03:51 S 10 38 49.363 +29 00 24.23 V C57
2022-02-16 10:03:51 s 1 +139535.55 1 +311141.57 6330.0 C57
2022-02-16 10:13:51 S 10 38 48.569 +29 00 36.58 V C57
2022-02-16 10:13:51 s 1 +139228.72 1 +311525.95 5190.0 C57
2022-02-16 10:23:51 S 10 38 47.827 +29 00 51.44 V C57
2022-02-16 10:23:51 s 1 +138921.40 4 +311909.22 2320.0 C57
2022-02-16 10:33:51 S 10 38 47.107 +29 01 04.40 V C57
2022-02-16 10:33:51 s 1 +138613.60 0 +312291.39 7720.0 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)