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
2022-01-27 12:16:08 C 11 08 49.49 +16 06 30.0 V T05
2022-01-27 12:23:30 C 11 08 49.13 +16 06 42.7 V T05
2022-01-27 12:38:39 C 11 08 48.39 +16 07 09.0 V T05
2022-01-28 11:32:59 C 11 07 45.65 +16 46 54.4 V T08
2022-01-28 11:35:38 C 11 07 45.51 +16 46 59.1 V T08
2022-01-28 11:39:37 C 11 07 45.30 +16 47 06.0 V T08
2022-01-28 11:47:30 C 11 07 44.90 +16 47 19.8 V T08
2022-01-28 13:27:46 C 11 07 39.71 +16 50 13.9 V T05
2022-01-28 13:35:04 C 11 07 39.33 +16 50 26.5 V T05
2022-01-28 14:20:55 C 11 07 36.95 +16 51 46.1 V T05
2022-01-28 14:25:35 C 11 07 36.71 +16 51 54.1 V T05
2022-01-29 13:27:22 C 11 06 29.76 +17 31 58.1 V T08
2022-01-29 14:18:27 C 11 06 26.98 +17 33 26.7 V T08
2022-01-29 14:25:52 C 11 06 26.56 +17 33 39.5 V T08
2022-01-29 14:32:31 C 11 06 26.21 +17 33 51.0 V T08
2022-01-30 11:11:33 C 11 05 23.894 +18 09 46.43 U F52
2022-01-30 11:28:55 C 11 05 22.920 +18 10 16.79 U F52
2022-01-30 11:46:22 C 11 05 21.927 +18 10 47.33 U F52
2022-01-30 11:48:02 C 11 05 21.84 +18 10 50.2 V T05
2022-01-30 11:50:40 C 11 05 21.69 +18 10 54.8 V T05
2022-01-30 12:20:00 C 11 05 20.03 +18 11 45.9 V T05
2022-01-30 12:47:55 C 11 05 18.44 +18 12 34.6 V T05
2022-01-30 19:20:57 C 11 04 57.53 +18 23 54.4 V D29
2022-01-30 19:59:08 C 11 04 55.35 +18 25 00.6 V D29
2022-01-30 20:37:19 C 11 04 53.18 +18 26 06.7 V D29
2022-01-31 12:00:04 C 11 04 04.25 +18 52 53.9 V T05
2022-01-31 12:02:42 C 11 04 04.10 +18 52 58.5 V T05
2022-01-31 12:07:19 C 11 04 03.83 +18 53 06.6 V T05
2022-01-31 12:23:50 C 11 04 02.85 +18 53 35.3 V T05
2022-01-31 13:27:21 C 11 03 59.06 +18 55 26.0 V T08
2022-01-31 13:35:25 C 11 03 58.58 +18 55 39.9 V T08
2022-01-31 14:06:28 C 11 03 56.74 +18 56 33.7 V T08
2022-01-31 14:11:07 C 11 03 56.46 +18 56 41.6 V T08
2022-02-01 08:23:19 C 11 02 56.36 +19 28 11.4 V G96
2022-02-01 08:31:30 C 11 02 55.86 +19 28 25.7 V G96
2022-02-01 08:39:42 C 11 02 55.37 +19 28 40.0 V G96
2022-02-01 08:47:53 C 11 02 54.86 +19 28 54.1 V G96
2022-02-01 09:47:57 C 11 02 51.21 +19 30 38.3 V 703
2022-02-01 09:55:44 C 11 02 50.73 +19 30 51.6 V 703
2022-02-01 10:03:30 C 11 02 50.26 +19 31 05.1 V 703
2022-02-01 10:11:17 C 11 02 49.79 +19 31 18.6 V 703
2022-02-01 13:50:06 C 11 02 37.13 +19 37 40.7 V T08
2022-02-01 13:54:44 C 11 02 36.84 +19 37 48.6 V T08
2022-02-01 14:04:08 C 11 02 36.27 +19 38 04.8 V T08
2022-02-02 11:30:11 C 11 01 22.22 +20 15 04.2 V T08
2022-02-02 11:32:50 C 11 01 22.05 +20 15 08.8 V T08
2022-02-02 12:10:27 C 11 01 19.65 +20 16 13.7 V T08
2022-02-02 12:37:20 C 11 01 17.92 +20 17 00.0 V T08
2022-02-02 20:52:03 C 11 00 49.29 +20 31 01.6 V L92
2022-02-02 20:56:36 C 11 00 49.02 +20 31 09.2 V L92
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)