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
2022-02-08 18:43:52 s 1 -200134.85 2 +176678.72 570.0 C57
2022-02-08 18:53:52 S 10 51 48.756 +24 28 40.51 V C57
2022-02-08 18:53:52 s 1 -200230.43 6 +176013.64 9540.0 C57
2022-02-08 19:03:52 S 10 51 47.928 +24 28 56.42 V C57
2022-02-08 19:03:52 s 1 -200324.75 5 +175347.44 2510.0 C57
2022-02-08 19:13:52 S 10 51 47.105 +24 29 11.90 V C57
2022-02-08 19:13:52 s 1 -200417.80 4 +174680.12 9460.0 C57
2022-02-08 19:23:52 S 10 51 46.229 +24 29 28.10 V C57
2022-02-08 19:23:52 s 1 -200509.57 7 +174011.69 370.0 C57
2022-02-08 19:33:52 S 10 51 45.406 +24 29 45.20 V C57
2022-02-08 19:33:52 s 1 -200600.07 0 +173342.14 5210.0 C57
2022-02-08 19:43:52 S 10 51 44.558 +24 30 00.68 V C57
2022-02-08 19:43:52 s 1 -200689.27 6 +172671.47 3960.0 C57
2022-02-08 19:46:45 C 10 51 25.85 +24 29 20.5 V L92
2022-02-08 19:53:52 S 10 51 43.735 +24 30 16.38 V C57
2022-02-08 19:53:52 s 1 -200777.19 1 +171999.69 6610.0 C57
2022-02-08 19:56:20 C 10 51 25.26 +24 29 36.0 V L92
2022-02-08 20:03:52 S 10 51 42.917 +24 30 32.00 V C57
2022-02-08 20:03:52 s 1 -200863.80 9 +171326.79 3120.0 C57
2022-02-08 20:06:59 C 10 51 24.36 +24 29 53.2 V L92
2022-02-08 20:13:52 S 10 51 42.065 +24 30 48.56 V C57
2022-02-08 20:13:52 s 1 -200949.12 5 +170652.77 3470.0 C57
2022-02-08 20:17:38 C 10 51 23.63 +24 30 10.4 V L92
2022-02-08 20:23:52 S 10 51 41.275 +24 31 03.76 V C57
2022-02-08 20:23:52 s 1 -201033.13 3 +169977.64 7630.0 C57
2022-02-08 20:33:52 S 10 51 40.445 +24 31 19.27 V C57
2022-02-08 20:33:52 s 1 -201115.82 8 +169301.39 5590.0 C57
2022-02-08 20:43:52 S 10 51 39.631 +24 31 35.83 V C57
2022-02-08 20:43:52 s 1 -201197.20 4 +168624.02 7320.0 C57
2022-02-08 20:53:52 S 10 51 38.767 +24 31 51.24 V C57
2022-02-08 20:53:52 s 1 -201277.25 7 +167945.55 2800.0 C57
2022-02-08 21:03:52 S 10 51 37.913 +24 32 07.84 V C57
2022-02-08 21:03:52 s 1 -201355.97 9 +167265.95 1990.0 C57
2022-02-08 21:13:52 S 10 51 37.051 +24 32 23.17 V C57
2022-02-08 21:13:52 s 1 -201433.36 6 +166585.24 4890.0 C57
2022-02-08 21:23:52 S 10 51 36.242 +24 32 38.98 V C57
2022-02-08 21:23:52 s 1 -201509.41 3 +165903.42 1450.0 C57
2022-02-08 21:33:52 S 10 51 35.371 +24 32 55.14 V C57
2022-02-08 21:33:52 s 1 -201584.11 3 +165220.49 1670.0 C57
2022-02-08 21:43:52 S 10 51 34.646 +24 33 10.55 V C57
2022-02-08 21:43:52 s 1 -201657.46 1 +164536.44 5500.0 C57
2022-02-08 21:53:52 S 10 51 33.751 +24 33 26.78 V C57
2022-02-08 21:53:52 s 1 -201729.45 1 +163851.28 2940.0 C57
2022-02-08 22:03:52 S 10 51 32.894 +24 33 42.52 V C57
2022-02-08 22:03:52 s 1 -201800.07 7 +163165.00 3950.0 C57
2022-02-08 22:13:52 S 10 51 32.095 +24 33 57.96 V C57
2022-02-08 22:13:52 s 1 -201869.33 5 +162477.62 8510.0 C57
2022-02-08 22:23:52 S 10 51 31.255 +24 34 14.77 V C57
2022-02-08 22:23:52 s 1 -201937.21 7 +161789.12 6590.0 C57
2022-02-08 22:33:52 S 10 51 30.379 +24 34 30.79 V 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)