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
2019-07-08 04:40:36 C 13 55 20.69 +16 22 37.7 V 703
2019-07-08 04:48:48 C 13 55 20.80 +16 22 31.2 V 703
2019-07-08 04:56:59 C 13 55 20.96 +16 22 24.9 V 703
2019-07-08 05:05:09 C 13 55 21.15 +16 22 18.4 V 703
2019-07-14 04:57:05 C 13 59 04.48 +14 27 39.3 U I41
2019-07-14 06:13:54 C 13 59 06.66 +14 26 37.2 U I41
2019-07-15 04:05:15 C 13 59 46.12 +14 09 02.0 U I41
2019-07-15 04:07:53 C 13 59 46.20 +14 09 00.0 U I41
2019-07-15 04:37:22 C 13 59 47.05 +14 08 36.2 U I41
2019-07-15 05:00:02 C 13 59 47.71 +14 08 17.8 U I41
2019-07-15 06:55:30 C 13 59 51.30 +14 06 45.9 V T05
2019-07-15 06:59:48 C 13 59 51.39 +14 06 43.0 V T05
2019-07-15 07:08:40 C 13 59 51.65 +14 06 35.7 V T05
2019-07-15 07:29:10 C 13 59 52.24 +14 06 18.9 V T05
2019-07-26 06:22:44 C 14 09 28.042 +10 32 10.81 U F52
2019-07-26 06:40:20 C 14 09 28.759 +10 31 56.31 U F52
2019-07-26 06:58:01 C 14 09 29.478 +10 31 41.76 U F52
2019-07-26 07:15:33 C 14 09 30.194 +10 31 27.32 U F52
2019-07-27 08:22:20 C 14 10 34.34 +10 10 48.7 V T05
2019-07-27 08:26:46 C 14 10 34.54 +10 10 44.6 V T05
2019-07-27 08:37:20 C 14 10 34.98 +10 10 36.8 V T05
2019-07-27 09:02:58 C 14 10 36.09 +10 10 15.5 V T05
2019-07-29 06:21:10 C 14 12 36.042 +09 32 58.71 U F52
2019-07-29 06:24:56 C 14 12 36.20 +09 32 56.1 V T08
2019-07-29 06:29:32 C 14 12 36.41 +09 32 52.3 V T08
2019-07-29 06:37:55 C 14 12 36.78 +09 32 45.0 V T08
2019-07-29 06:47:19 C 14 12 37.181 +09 32 37.14 U F52
2019-07-29 06:53:38 C 14 12 37.45 +09 32 32.2 V T08
2019-07-29 07:04:05 C 14 12 37.917 +09 32 23.29 U F52
2019-07-29 07:20:45 C 14 12 38.648 +09 32 09.53 U F52
2019-08-21 03:08:56 C 14 42 47.38 +01 59 52.5 V 703
2019-08-21 03:16:31 C 14 42 47.88 +01 59 46.9 V 703
2019-08-21 03:24:07 C 14 42 48.38 +01 59 40.3 V 703
2019-08-21 03:31:41 C 14 42 48.84 +01 59 34.1 V 703
2019-08-26 03:05:21 C 14 50 44.87 +00 21 25.5 V 703
2019-08-26 03:13:33 C 14 50 45.51 +00 21 18.5 V 703
2019-08-26 03:21:44 C 14 50 45.97 +00 21 11.9 V 703
2019-08-26 03:29:56 C 14 50 46.58 +00 21 05.8 V 703
2019-09-18 05:26:47 C 15 33 35.53 -07 04 37.1 V T08
2019-09-18 05:34:57 C 15 33 36.24 -07 04 43.9 V T08
2019-09-18 05:40:19 C 15 33 36.71 -07 04 47.2 V T08
2019-09-18 05:55:02 C 15 33 37.95 -07 04 59.7 V T08
2020-03-12 05:24:12 C 02 39 29.70 +03 49 32.6 V T08
2020-03-12 05:28:52 C 02 39 30.53 +03 49 38.6 V T08
2020-03-12 05:39:33 C 02 39 32.35 +03 49 52.1 V T08
2020-03-12 05:56:11 C 02 39 35.25 +03 50 13.5 V T08
2020-03-17 02:32:33 C 02 59 45.03 +06 16 36.7 V 703
2020-03-17 02:40:08 C 02 59 46.27 +06 16 46.2 V 703
2020-03-17 02:47:43 C 02 59 47.59 +06 16 55.8 V 703
2020-03-17 02:55:20 C 02 59 48.89 +06 17 05.1 V 703
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)