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
2024-04-22 06:53:01 S 15 05 14.263 +26 04 12.47 V C57
2024-04-22 06:53:01 s 1 -86722.961 0 +89395.691 0.295 C57
2024-04-22 07:13:01 S 15 05 12.931 +26 04 22.30 V C57
2024-04-22 07:13:01 s 1 -87514.060 0 +87534.172 0.445 C57
2024-04-22 07:33:01 S 15 05 11.494 +26 04 35.11 V C57
2024-04-22 07:33:01 s 1 -88296.237 0 +85663.723 0.508 C57
2024-04-22 07:53:01 S 15 05 10.133 +26 04 46.99 V C57
2024-04-22 07:53:01 s 1 -89069.367 0 +83784.488 0.427 C57
2024-04-22 08:13:01 S 15 05 08.717 +26 05 00.31 V C57
2024-04-22 08:13:01 s 1 -89833.324 0 +81896.618 0.149 C57
2024-04-22 08:53:01 S 15 05 06.055 +26 05 22.13 V C57
2024-04-22 08:53:01 s 1 -91332.792 0 +78095.190 0.18 C57
2024-04-22 09:13:01 S 15 05 04.711 +26 05 32.96 V C57
2024-04-22 09:13:01 s 1 -92068.049 0 +76181.948 0.387 C57
2024-04-22 09:18:34 C 15 04 52.291 +26 08 04.96 V 703
2024-04-22 09:21:32 C 15 04 52.064 +26 08 06.54 V 703
2024-04-22 09:24:30 C 15 04 51.874 +26 08 08.38 V 703
2024-04-22 09:27:28 C 15 04 51.661 +26 08 10.50 V 703
2024-04-22 09:33:01 S 15 05 03.329 +26 05 44.99 V C57
2024-04-22 09:33:01 s 1 -92793.335 0 +74260.446 0.78 C57
2024-04-22 09:52:13 C 15 04 50.508 +26 08 23.39 V T05
2024-04-22 09:53:01 S 15 05 01.968 +26 05 58.78 V C57
2024-04-22 09:53:01 s 1 -93508.521 0 +72330.851 0.311 C57
2024-04-22 09:56:08 C 15 04 50.246 +26 08 25.80 V T05
2024-04-22 10:00:41 C 15 04 49.930 +26 08 28.18 V T05
2024-04-22 10:13:01 S 15 05 00.646 +26 06 07.85 V C57
2024-04-22 10:13:01 s 1 -94213.482 0 +70393.335 0.934 C57
2024-04-22 10:25:37 C 15 04 48.271 +26 08 40.85 V T05
2024-04-22 10:33:01 S 15 04 59.592 +26 06 17.60 V C57
2024-04-22 10:33:01 s 1 -94907.929 0 +68447.951 0.39 C57
2024-04-22 10:53:01 S 15 04 57.874 +26 06 27.97 V C57
2024-04-22 10:53:01 s 1 -95591.734 0 +66494.881 0.636 C57
2024-04-22 11:33:01 S 15 04 55.150 +26 06 51.37 V C57
2024-04-22 11:33:01 s 1 -96926.740 0 +62566.301 0.119 C57
2024-04-22 11:53:01 S 15 04 53.834 +26 07 06.24 V C57
2024-04-22 11:53:01 s 1 -97577.517 0 +60591.058 0.059 C57
2024-04-22 12:13:01 S 15 04 52.558 +26 07 17.51 V C57
2024-04-22 12:13:01 s 1 -98216.972 0 +58608.770 0.418 C57
2024-04-22 12:33:01 S 15 04 51.029 +26 07 27.62 V C57
2024-04-22 12:33:01 s 1 -98844.803 0 +56619.532 0.937 C57
2024-04-22 12:53:01 S 15 04 49.711 +26 07 40.15 V C57
2024-04-22 12:53:01 s 1 -99460.878 0 +54623.550 0.591 C57
2024-04-22 13:13:01 S 15 04 48.410 +26 07 53.62 V C57
2024-04-22 13:13:01 s 1 -100064.67 7 +52622.070 0.769 C57
2024-04-22 14:13:01 S 15 04 44.093 +26 08 29.54 V C57
2024-04-22 14:13:01 s 1 -101803.66 1 +46576.861 0.039 C57
2024-04-22 14:33:01 S 15 04 42.756 +26 08 38.22 V C57
2024-04-22 14:33:01 s 1 -102358.16 4 +44549.876 0.825 C57
2024-04-22 14:53:01 S 15 04 41.587 +26 08 50.71 V C57
2024-04-22 14:53:01 s 1 -102899.78 2 +42517.269 0.149 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)