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
2022-05-18 02:42:10 C 10 26 49.35 +31 25 12.7 Z W33
2022-05-18 03:03:44 C 10 26 50.54 +31 25 03.9 Z W33
2022-05-18 03:25:40 C 10 26 51.67 +31 24 53.5 Z W33
2022-05-19 04:30:35 C 10 28 14.141 +31 13 23.02 U I41
2022-05-19 04:31:05 C 10 28 14.160 +31 13 22.62 V 703
2022-05-19 04:39:19 C 10 28 14.581 +31 13 19.13 V 703
2022-05-19 04:47:33 C 10 28 15.056 +31 13 14.77 V 703
2022-05-19 04:55:46 C 10 28 15.456 +31 13 10.49 V 703
2022-05-19 05:49:12 C 10 28 18.360 +31 12 46.19 U I41
2022-05-20 04:24:17 C 10 29 33.370 +31 02 20.29 U I41
2022-05-20 05:13:51 C 10 29 36.050 +31 01 56.89 U I41
2022-05-21 05:00:37 C 10 30 55.580 +30 50 51.68 V 703
2022-05-21 05:08:51 C 10 30 56.041 +30 50 48.91 V 703
2022-05-21 05:17:05 C 10 30 56.477 +30 50 44.74 V 703
2022-05-21 05:25:19 C 10 30 56.977 +30 50 40.49 V 703
2022-05-24 03:27:03 C 10 34 55.276 +30 17 38.51 V G96
2022-05-24 03:35:09 C 10 34 55.722 +30 17 34.48 V G96
2022-05-24 03:43:18 C 10 34 56.183 +30 17 30.66 V G96
2022-05-24 03:51:25 C 10 34 56.636 +30 17 26.77 V G96
2022-05-25 04:39:12 C 10 36 22.316 +30 05 36.24 V 703
2022-05-25 04:47:23 C 10 36 22.705 +30 05 31.63 V 703
2022-05-25 04:55:35 C 10 36 23.184 +30 05 26.74 V 703
2022-05-25 05:03:46 C 10 36 23.602 +30 05 23.17 V 703
2022-05-29 04:32:24 C 10 41 59.672 +29 19 02.68 V 703
2022-05-29 04:38:05 C 10 41 59.971 +29 18 59.15 V 703
2022-05-29 04:39:58 C 10 42 00.148 +29 18 59.08 V 703
2022-05-29 04:45:39 C 10 42 00.396 +29 18 56.41 V 703
2022-05-29 04:47:32 C 10 42 00.587 +29 18 54.61 V 703
2022-05-29 04:53:13 C 10 42 00.839 +29 18 51.73 V 703
2022-05-29 04:55:06 C 10 42 00.997 +29 18 50.11 V 703
2022-05-29 05:00:47 C 10 42 01.249 +29 18 47.70 V 703
2022-06-02 04:39:02 C 10 47 46.730 +28 31 18.98 V 703
2022-06-02 04:46:43 C 10 47 47.155 +28 31 13.66 V 703
2022-06-02 04:54:25 C 10 47 47.584 +28 31 09.77 V 703
2022-06-02 05:02:07 C 10 47 48.080 +28 31 06.46 V 703
2022-06-14 13:23:18 C 11 06 24.52 +25 58 12.3 V D29
2022-06-14 13:35:40 C 11 06 25.31 +25 58 06.1 V D29
2022-06-14 13:48:02 C 11 06 26.13 +25 57 59.8 V D29
2022-06-16 04:14:23 C 11 08 55.208 +25 37 37.02 V 703
2022-06-16 04:22:35 C 11 08 55.651 +25 37 32.09 V 703
2022-06-16 04:30:48 C 11 08 56.339 +25 37 28.20 V 703
2022-06-16 04:39:00 C 11 08 56.843 +25 37 24.31 V 703
2023-12-31 14:48:20 C 14 08 22.786 +03 05 19.75 V T08
2023-12-31 15:08:51 C 14 08 24.341 +03 05 20.26 V T08
2023-12-31 15:35:30 C 14 08 26.340 +03 05 21.77 V T08
2023-12-31 15:44:11 C 14 08 26.940 +03 05 22.09 V T08
2024-01-03 12:00:47 C 14 13 33.726 +03 08 21.98 V 703
2024-01-03 12:07:07 C 14 13 34.144 +03 08 23.46 V 703
2024-01-03 12:19:46 C 14 13 34.900 +03 08 22.13 V 703
2024-01-13 15:00:35 C 14 31 00.502 +03 32 23.17 V T08
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)