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
2022-02-17 12:03:51 S 10 36 52.975 +29 35 05.03 V C57
2022-02-17 12:03:51 s 1 +86842.223 0 +358105.11 5580.0 C57
2022-02-17 12:13:51 S 10 36 52.200 +29 35 17.95 V C57
2022-02-17 12:13:51 s 1 +86479.394 0 +358323.65 9780.0 C57
2022-02-17 12:23:51 S 10 36 51.502 +29 35 31.45 V C57
2022-02-17 12:23:51 s 1 +86116.318 0 +358541.16 3270.0 C57
2022-02-17 12:33:51 S 10 36 50.666 +29 35 43.62 V C57
2022-02-17 12:33:51 s 1 +85752.999 0 +358757.64 6070.0 C57
2022-02-17 12:43:51 S 10 36 49.934 +29 35 56.94 V C57
2022-02-17 12:43:51 s 1 +85389.436 0 +358973.09 8180.0 C57
2022-02-17 12:53:51 S 10 36 49.193 +29 36 10.51 V C57
2022-02-17 12:53:51 s 1 +85025.630 0 +359187.51 9610.0 C57
2022-02-17 13:03:51 S 10 36 48.403 +29 36 22.46 V C57
2022-02-17 13:03:51 s 1 +84661.585 0 +359400.90 350.0 C57
2022-02-17 13:13:51 S 10 36 47.666 +29 36 37.55 V C57
2022-02-17 13:13:51 s 1 +84297.299 0 +359613.27 420.0 C57
2022-02-17 13:23:51 S 10 36 46.889 +29 36 49.28 V C57
2022-02-17 13:23:51 s 1 +83932.775 0 +359824.61 9820.0 C57
2022-02-17 13:33:51 S 10 36 46.102 +29 37 01.85 V C57
2022-02-17 13:33:51 s 1 +83568.015 0 +360034.92 8560.0 C57
2022-02-17 13:43:51 S 10 36 45.377 +29 37 16.10 V C57
2022-02-17 13:43:51 s 1 +83203.018 0 +360244.20 6640.0 C57
2022-02-17 13:53:51 S 10 36 44.590 +29 37 28.81 V C57
2022-02-17 13:53:51 s 1 +82837.787 0 +360452.46 4070.0 C57
2022-02-17 14:03:51 S 10 36 43.831 +29 37 40.51 V C57
2022-02-17 14:03:51 s 1 +82472.323 0 +360659.69 850.0 C57
2022-02-17 14:13:51 S 10 36 43.109 +29 37 55.27 V C57
2022-02-17 14:13:51 s 1 +82106.627 0 +360865.90 6990.0 C57
2022-02-17 14:23:51 S 10 36 42.329 +29 38 07.40 V C57
2022-02-17 14:23:51 s 1 +81740.699 0 +361071.08 2490.0 C57
2022-02-17 14:33:51 S 10 36 41.542 +29 38 20.90 V C57
2022-02-17 14:33:51 s 1 +81374.543 0 +361275.23 7360.0 C57
2022-02-17 14:43:51 S 10 36 40.764 +29 38 34.84 V C57
2022-02-17 14:43:51 s 1 +81008.158 0 +361478.36 1600.0 C57
2022-02-17 14:53:51 S 10 36 39.991 +29 38 46.90 V C57
2022-02-17 14:53:51 s 1 +80641.545 0 +361680.46 5220.0 C57
2022-02-17 15:03:51 S 10 36 39.271 +29 39 00.50 V C57
2022-02-17 15:03:51 s 1 +80274.707 0 +361881.55 8230.0 C57
2022-02-17 15:13:51 S 10 36 38.472 +29 39 13.00 V C57
2022-02-17 15:13:51 s 1 +79907.645 0 +362081.60 620.0 C57
2022-02-17 15:23:51 S 10 36 37.649 +29 39 25.99 V C57
2022-02-17 15:23:51 s 1 +79540.359 0 +362280.63 2410.0 C57
2022-02-17 15:33:51 S 10 36 36.958 +29 39 40.00 V C57
2022-02-17 15:33:51 s 1 +79172.850 0 +362478.64 3600.0 C57
2022-02-17 15:43:51 S 10 36 36.190 +29 39 51.77 V C57
2022-02-17 15:43:51 s 1 +78805.121 0 +362675.63 4200.0 C57
2022-02-17 15:53:51 S 10 36 35.395 +29 40 05.16 V C57
2022-02-17 15:53:51 s 1 +78437.172 0 +362871.59 4200.0 C57
2022-02-17 16:03:51 S 10 36 34.649 +29 40 19.31 V C57
2022-02-17 16:03:51 s 1 +78069.004 0 +363066.53 3620.0 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)