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
2024-02-20 12:19:10 C 15 21 40.489 +08 36 45.54 V 703
2024-02-20 14:15:27 C 15 21 44.981 +08 37 48.86 V T05
2024-02-20 14:20:06 C 15 21 45.142 +08 37 51.49 V T05
2024-02-20 14:24:28 C 15 21 45.307 +08 37 53.65 V T05
2024-02-20 14:41:19 C 15 21 45.922 +08 38 03.59 V T05
2024-02-21 01:51:24 C 15 22 11.362 +08 44 12.26 V M22
2024-02-21 01:55:59 C 15 22 11.568 +08 44 15.58 V M22
2024-02-21 02:05:11 C 15 22 11.861 +08 44 19.75 V M22
2024-02-21 02:20:49 C 15 22 12.454 +08 44 28.64 V M22
2024-02-22 12:24:10 C 15 23 27.727 +09 03 15.12 V T05
2024-02-22 12:28:43 C 15 23 27.866 +09 03 17.93 V T05
2024-02-22 12:56:48 C 15 23 28.814 +09 03 33.91 V T05
2024-02-22 13:02:40 C 15 23 29.004 +09 03 36.22 V T05
2024-02-26 13:17:53 C 15 26 41.784 +09 59 49.70 V T05
2024-02-26 13:21:57 C 15 26 41.894 +09 59 53.27 V T05
2024-02-26 13:26:31 C 15 26 42.031 +09 59 56.40 V T05
2024-02-26 13:51:26 C 15 26 42.722 +10 00 11.38 V T05
2024-02-27 06:43:18 C 15 27 13.637 +10 10 33.67 V W68
2024-02-27 06:47:53 C 15 27 13.735 +10 10 37.16 V W68
2024-02-27 06:51:52 C 15 27 13.800 +10 10 39.40 V W68
2024-02-27 07:06:57 C 15 27 14.225 +10 10 47.93 V W68
2024-03-10 08:23:24 C 15 33 21.850 +13 26 07.26 V W68
2024-03-10 08:53:53 C 15 33 22.164 +13 26 29.54 V W68
2024-03-10 09:08:52 C 15 33 22.310 +13 26 40.85 V W68
2024-03-10 09:36:05 C 15 33 22.555 +13 27 00.72 V W68
2024-03-12 01:48:47 C 15 33 47.774 +13 56 43.87 V M22
2024-03-12 01:51:23 C 15 33 47.810 +13 56 45.60 V M22
2024-03-12 01:55:18 C 15 33 47.830 +13 56 48.77 V M22
2024-03-12 02:03:09 C 15 33 47.851 +13 56 54.89 V M22
2024-03-14 06:25:40 C 15 34 10.291 +14 36 22.64 V W68
2024-03-14 06:38:56 C 15 34 10.325 +14 36 32.76 V W68
2024-03-14 06:45:33 C 15 34 10.363 +14 36 38.12 V W68
2024-03-14 06:53:22 C 15 34 10.397 +14 36 43.85 V W68
2024-03-15 12:55:40 C 15 34 17.702 +14 59 38.65 V T08
2024-03-15 13:00:24 C 15 34 17.700 +14 59 42.25 V T08
2024-03-15 13:04:23 C 15 34 17.690 +14 59 45.20 V T08
2024-03-15 13:14:24 C 15 34 17.712 +14 59 53.09 V T08
2024-03-16 12:56:45 C 15 34 20.671 +15 18 12.31 V T05
2024-03-16 13:00:40 C 15 34 20.669 +15 18 15.41 V T05
2024-03-16 13:05:48 C 15 34 20.676 +15 18 19.40 V T05
2024-03-16 13:13:37 C 15 34 20.664 +15 18 25.38 V T05
2024-03-17 12:37:32 C 15 34 21.125 +15 36 38.56 V T05
2024-03-17 12:40:09 C 15 34 21.134 +15 36 40.21 V T05
2024-03-17 12:48:00 C 15 34 21.110 +15 36 46.62 V T05
2024-03-17 12:55:16 C 15 34 21.077 +15 36 52.38 V T05
2024-03-18 07:03:06 C 15 34 19.673 +15 51 10.98 V W68
2024-03-18 07:05:43 C 15 34 19.668 +15 51 13.03 V W68
2024-03-18 07:10:18 C 15 34 19.639 +15 51 16.34 V W68
2024-03-18 07:26:47 C 15 34 19.596 +15 51 29.66 V W68
2024-03-19 09:30:49 C 15 34 14.941 +16 11 54.35 V G96
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)