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
2022-02-19 20:53:51 S 10 32 22.222 +30 46 28.96 V C57
2022-02-19 20:53:51 s 1 -43772.291 0 +374395.08 5100.0 C57
2022-02-19 20:55:15 C 10 31 23.28 +30 43 57.1 X G02
2022-02-19 20:58:20 C 10 31 23.02 +30 44 01.0 X G02
2022-02-19 21:03:51 S 10 32 21.391 +30 46 40.66 V C57
2022-02-19 21:03:51 s 1 -44155.301 0 +374273.03 5890.0 C57
2022-02-19 21:13:51 S 10 32 20.510 +30 46 52.25 V C57
2022-02-19 21:13:51 s 1 -44538.192 0 +374149.99 5810.0 C57
2022-02-19 21:23:51 S 10 32 19.766 +30 47 03.55 V C57
2022-02-19 21:23:51 s 1 -44920.965 0 +374025.95 4860.0 C57
2022-02-19 21:33:51 S 10 32 18.912 +30 47 16.80 V C57
2022-02-19 21:33:51 s 1 -45303.618 0 +373900.92 3010.0 C57
2022-02-19 21:43:51 S 10 32 18.096 +30 47 29.00 V C57
2022-02-19 21:43:51 s 1 -45686.150 0 +373774.89 280.0 C57
2022-02-19 21:53:51 S 10 32 17.275 +30 47 39.59 V C57
2022-02-19 21:53:51 s 1 -46068.559 0 +373647.87 6650.0 C57
2022-02-19 22:03:51 S 10 32 16.498 +30 47 52.62 V C57
2022-02-19 22:03:51 s 1 -46450.845 0 +373519.85 2130.0 C57
2022-02-19 22:13:51 S 10 32 15.602 +30 48 05.00 V C57
2022-02-19 22:13:51 s 1 -46833.007 0 +373390.83 6700.0 C57
2022-02-19 22:23:51 S 10 32 14.794 +30 48 15.44 V C57
2022-02-19 22:23:51 s 1 -47215.044 0 +373260.82 360.0 C57
2022-02-19 22:33:51 S 10 32 14.028 +30 48 29.74 V C57
2022-02-19 22:33:51 s 1 -47596.954 0 +373129.81 3110.0 C57
2022-02-19 22:43:51 S 10 32 13.150 +30 48 40.90 V C57
2022-02-19 22:43:51 s 1 -47978.736 0 +372997.80 4940.0 C57
2022-02-19 22:53:51 S 10 32 12.322 +30 48 51.84 V C57
2022-02-19 22:53:51 s 1 -48360.390 0 +372864.80 5850.0 C57
2022-02-19 23:03:51 S 10 32 11.554 +30 49 04.19 V C57
2022-02-19 23:03:51 s 1 -48741.913 0 +372730.79 5830.0 C57
2022-02-19 23:13:51 S 10 32 10.757 +30 49 16.82 V C57
2022-02-19 23:13:51 s 1 -49123.306 0 +372595.80 4880.0 C57
2022-02-19 23:23:51 S 10 32 09.821 +30 49 27.44 V C57
2022-02-19 23:23:51 s 1 -49504.568 0 +372459.80 2990.0 C57
2022-02-19 23:33:51 S 10 32 09.060 +30 49 39.07 V C57
2022-02-19 23:33:51 s 1 -49885.696 0 +372322.81 160.0 C57
2022-02-19 23:43:51 S 10 32 08.278 +30 49 53.00 V C57
2022-02-19 23:43:51 s 1 -50266.690 0 +372184.82 6380.0 C57
2022-02-19 23:53:51 S 10 32 07.385 +30 50 04.78 V C57
2022-02-19 23:53:51 s 1 -50647.548 0 +372045.83 1650.0 C57
2022-02-20 00:03:51 S 10 32 06.554 +30 50 15.32 V C57
2022-02-20 00:03:51 s 1 -51028.271 0 +371905.84 5960.0 C57
2022-02-20 00:13:51 S 10 32 05.791 +30 50 28.10 V C57
2022-02-20 00:13:51 s 1 -51408.856 0 +371764.85 9310.0 C57
2022-02-20 00:23:51 S 10 32 04.913 +30 50 40.20 V C57
2022-02-20 00:23:51 s 1 -51789.303 0 +371622.87 1700.0 C57
2022-02-20 00:33:51 S 10 32 04.097 +30 50 51.00 V C57
2022-02-20 00:33:51 s 1 -52169.610 0 +371479.89 3110.0 C57
2022-02-20 00:43:51 S 10 32 03.274 +30 51 03.74 V C57
2022-02-20 00:43:51 s 1 -52549.776 0 +371335.91 3550.0 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)