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
2022-02-18 05:33:51 S 10 35 31.778 +29 57 43.81 V C57
2022-02-18 05:33:51 s 1 +47629.317 0 +375487.44 6240.0 C57
2022-02-18 05:43:51 S 10 35 31.015 +29 57 55.58 V C57
2022-02-18 05:43:51 s 1 +47247.175 0 +375599.47 4620.0 C57
2022-02-18 05:53:51 S 10 35 30.259 +29 58 09.62 V C57
2022-02-18 05:53:51 s 1 +46864.907 0 +375710.50 2810.0 C57
2022-02-18 06:03:51 S 10 35 29.407 +29 58 21.90 V C57
2022-02-18 06:03:51 s 1 +46482.517 0 +375820.54 840.0 C57
2022-02-18 06:13:51 S 10 35 28.685 +29 58 33.67 V C57
2022-02-18 06:13:51 s 1 +46100.005 0 +375929.57 8690.0 C57
2022-02-18 06:23:51 S 10 35 27.931 +29 58 47.93 V C57
2022-02-18 06:23:51 s 1 +45717.371 0 +376037.60 6370.0 C57
2022-02-18 06:33:51 S 10 35 27.065 +29 59 00.38 V C57
2022-02-18 06:33:51 s 1 +45334.618 0 +376144.63 3900.0 C57
2022-02-18 06:43:51 S 10 35 26.306 +29 59 12.44 V C57
2022-02-18 06:43:51 s 1 +44951.746 0 +376250.66 1260.0 C57
2022-02-18 06:53:51 S 10 35 25.601 +29 59 26.41 V C57
2022-02-18 06:53:51 s 1 +44568.755 0 +376355.69 8470.0 C57
2022-02-18 07:03:51 S 10 35 24.679 +29 59 38.29 V C57
2022-02-18 07:03:51 s 1 +44185.648 0 +376459.72 5540.0 C57
2022-02-18 07:13:51 S 10 35 23.906 +29 59 50.89 V C57
2022-02-18 07:13:51 s 1 +43802.426 0 +376562.75 2460.0 C57
2022-02-18 07:23:51 S 10 35 23.237 +30 00 03.89 V C57
2022-02-18 07:23:51 s 1 +43419.088 0 +376664.78 9240.0 C57
2022-02-18 07:33:51 S 10 35 22.342 +30 00 16.49 V C57
2022-02-18 07:33:51 s 1 +43035.637 0 +376765.81 5880.0 C57
2022-02-18 07:43:51 S 10 35 21.614 +30 00 29.70 V C57
2022-02-18 07:43:51 s 1 +42652.074 0 +376865.84 2400.0 C57
2022-02-18 07:53:51 S 10 35 20.902 +30 00 42.80 V C57
2022-02-18 07:53:51 s 1 +42268.399 0 +376964.87 8790.0 C57
2022-02-18 08:03:51 S 10 35 20.052 +30 00 54.36 V C57
2022-02-18 08:03:51 s 1 +41884.613 0 +377062.90 5060.0 C57
2022-02-18 08:13:51 S 10 35 19.231 +30 01 07.72 V C57
2022-02-18 08:13:51 s 1 +41500.718 0 +377159.94 1210.0 C57
2022-02-18 08:23:51 S 10 35 18.432 +30 01 20.71 V C57
2022-02-18 08:23:51 s 1 +41116.715 0 +377255.97 7250.0 C57
2022-02-18 08:33:51 S 10 35 17.638 +30 01 33.02 V C57
2022-02-18 08:33:51 s 1 +40732.605 0 +377351.01 3180.0 C57
2022-02-18 08:43:51 S 10 35 16.896 +30 01 47.06 V C57
2022-02-18 08:43:51 s 1 +40348.388 0 +377445.05 9010.0 C57
2022-02-18 08:53:51 S 10 35 16.104 +30 01 59.41 V C57
2022-02-18 08:53:51 s 1 +39964.066 0 +377538.09 4740.0 C57
2022-02-18 09:03:51 S 10 35 15.338 +30 02 10.93 V C57
2022-02-18 09:03:51 s 1 +39579.640 0 +377630.13 380.0 C57
2022-02-18 09:13:51 S 10 35 14.575 +30 02 24.36 V C57
2022-02-18 09:13:51 s 1 +39195.111 0 +377721.18 5930.0 C57
2022-02-18 09:23:51 S 10 35 13.704 +30 02 37.14 V C57
2022-02-18 09:23:51 s 1 +38810.481 0 +377811.22 1390.0 C57
2022-02-18 09:33:51 S 10 35 12.953 +30 02 49.02 V C57
2022-02-18 09:33:51 s 1 +38425.749 0 +377900.27 6780.0 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)