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
2022-02-09 19:03:52 s 1 -197445.26 2 +68165.652 5090.0 C57
2022-02-09 19:13:52 S 10 49 45.341 +25 07 02.64 V C57
2022-02-09 19:13:52 s 1 -197283.20 9 +67349.618 3060.0 C57
2022-02-09 19:23:52 S 10 49 44.470 +25 07 18.05 V C57
2022-02-09 19:23:52 s 1 -197118.72 8 +66532.755 40.0 C57
2022-02-09 19:33:52 S 10 49 43.598 +25 07 33.92 V C57
2022-02-09 19:33:52 s 1 -196951.80 8 +65715.069 5990.0 C57
2022-02-09 19:43:52 S 10 49 42.734 +25 07 49.51 V C57
2022-02-09 19:43:52 s 1 -196782.43 7 +64896.564 840.0 C57
2022-02-09 20:03:52 S 10 49 41.107 +25 08 19.90 V C57
2022-02-09 20:03:52 s 1 -196436.29 6 +63257.122 7080.0 C57
2022-02-09 20:13:52 S 10 49 40.234 +25 08 35.34 V C57
2022-02-09 20:13:52 s 1 -196259.50 2 +62436.197 8360.0 C57
2022-02-09 20:23:52 S 10 49 39.382 +25 08 52.04 V C57
2022-02-09 20:23:52 s 1 -196080.20 9 +61614.477 8360.0 C57
2022-02-09 20:33:52 S 10 49 38.522 +25 09 07.02 V C57
2022-02-09 20:33:52 s 1 -195898.40 6 +60791.967 7010.0 C57
2022-02-09 20:43:52 S 10 49 37.615 +25 09 22.54 V C57
2022-02-09 20:43:52 s 1 -195714.08 0 +59968.675 4280.0 C57
2022-02-09 20:53:52 S 10 49 36.722 +25 09 38.59 V C57
2022-02-09 20:53:52 s 1 -195527.21 8 +59144.605 100.0 C57
2022-02-09 21:03:52 S 10 49 35.885 +25 09 54.11 V C57
2022-02-09 21:03:52 s 1 -195337.81 0 +58319.765 4420.0 C57
2022-02-09 21:13:52 S 10 49 35.045 +25 10 10.13 V C57
2022-02-09 21:13:52 s 1 -195145.84 2 +57494.160 7200.0 C57
2022-02-09 21:23:52 S 10 49 34.272 +25 10 24.38 V C57
2022-02-09 21:23:52 s 1 -194951.30 2 +56667.797 8380.0 C57
2022-02-09 21:33:52 S 10 49 33.365 +25 10 39.86 V C57
2022-02-09 21:33:52 s 1 -194754.17 7 +55840.683 7910.0 C57
2022-02-09 21:43:52 S 10 49 32.527 +25 10 55.42 V C57
2022-02-09 21:43:52 s 1 -194554.45 5 +55012.823 5730.0 C57
2022-02-09 21:53:52 S 10 49 31.646 +25 11 11.83 V C57
2022-02-09 21:53:52 s 1 -194352.12 3 +54184.226 1800.0 C57
2022-02-09 22:03:52 S 10 49 30.732 +25 11 26.99 V C57
2022-02-09 22:03:52 s 1 -194147.16 9 +53354.898 6050.0 C57
2022-02-09 22:13:52 S 10 49 29.902 +25 11 42.50 V C57
2022-02-09 22:13:52 s 1 -193939.58 0 +52524.845 8450.0 C57
2022-02-09 22:23:52 S 10 49 29.033 +25 11 58.67 V C57
2022-02-09 22:23:52 s 1 -193729.34 2 +51694.075 8920.0 C57
2022-02-09 22:33:52 S 10 49 28.210 +25 12 13.43 V C57
2022-02-09 22:33:52 s 1 -193516.44 4 +50862.595 7420.0 C57
2022-02-09 22:43:52 S 10 49 27.350 +25 12 29.05 V C57
2022-02-09 22:43:52 s 1 -193300.87 1 +50030.412 3900.0 C57
2022-02-09 22:53:52 S 10 49 26.510 +25 12 44.75 V C57
2022-02-09 22:53:52 s 1 -193082.61 2 +49197.533 8300.0 C57
2022-02-09 23:03:52 S 10 49 25.627 +25 12 59.80 V C57
2022-02-09 23:03:52 s 1 -192861.65 2 +48363.967 560.0 C57
2022-02-09 23:13:52 S 10 49 24.806 +25 13 15.53 V C57
2022-02-09 23:13:52 s 1 -192637.97 9 +47529.720 630.0 C57
2022-02-09 23:23:52 S 10 49 23.909 +25 13 31.22 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)