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
2022-02-23 20:03:51 S 10 24 14.554 +32 30 53.78 V C57
2022-02-23 20:03:51 s 1 -196019.87 7 +132557.57 130.0 C57
2022-02-23 20:13:51 S 10 24 13.706 +32 31 04.66 V C57
2022-02-23 20:13:51 s 1 -196033.40 4 +131809.22 7430.0 C57
2022-02-23 20:23:51 S 10 24 12.787 +32 31 14.84 V C57
2022-02-23 20:23:51 s 1 -196045.20 3 +131059.71 6680.0 C57
2022-02-23 20:33:51 S 10 24 11.978 +32 31 24.13 V C57
2022-02-23 20:33:51 s 1 -196055.26 3 +130309.05 7840.0 C57
2022-02-23 20:43:51 S 10 24 11.090 +32 31 32.88 V C57
2022-02-23 20:43:51 s 1 -196063.57 8 +129557.23 860.0 C57
2022-02-23 20:53:51 S 10 24 10.135 +32 31 43.07 V C57
2022-02-23 20:53:51 s 1 -196070.13 9 +128804.26 5720.0 C57
2022-02-23 21:03:51 S 10 24 09.398 +32 31 53.83 V C57
2022-02-23 21:03:51 s 1 -196074.93 8 +128050.14 2380.0 C57
2022-02-23 21:13:51 S 10 24 08.532 +32 32 03.66 V C57
2022-02-23 21:13:51 s 1 -196077.96 6 +127294.86 810.0 C57
2022-02-23 21:23:51 S 10 24 07.538 +32 32 13.78 V C57
2022-02-23 21:23:51 s 1 -196079.21 5 +126538.44 960.0 C57
2022-02-23 21:33:51 S 10 24 06.684 +32 32 22.99 V C57
2022-02-23 21:33:51 s 1 -196078.67 7 +125780.87 2800.0 C57
2022-02-23 21:43:51 S 10 24 05.842 +32 32 32.14 V C57
2022-02-23 21:43:51 s 1 -196076.34 4 +125022.16 6290.0 C57
2022-02-23 21:53:51 S 10 24 04.994 +32 32 42.79 V C57
2022-02-23 21:53:51 s 1 -196072.20 7 +124262.30 1410.0 C57
2022-02-23 22:03:51 S 10 24 04.116 +32 32 52.69 V C57
2022-02-23 22:03:51 s 1 -196066.25 7 +123501.30 8100.0 C57
2022-02-23 22:13:51 S 10 24 03.223 +32 33 01.48 V C57
2022-02-23 22:13:51 s 1 -196058.48 6 +122739.15 6330.0 C57
2022-02-23 22:23:51 S 10 24 02.275 +32 33 11.66 V C57
2022-02-23 22:23:51 s 1 -196048.88 5 +121975.87 6070.0 C57
2022-02-23 22:33:51 S 10 24 01.522 +32 33 21.60 V C57
2022-02-23 22:33:51 s 1 -196037.44 6 +121211.45 7270.0 C57
2022-02-23 22:43:51 S 10 24 00.607 +32 33 32.04 V C57
2022-02-23 22:43:51 s 1 -196024.15 9 +120445.89 9910.0 C57
2022-02-23 22:53:51 S 10 23 59.741 +32 33 41.26 V C57
2022-02-23 22:53:51 s 1 -196009.01 7 +119679.20 3930.0 C57
2022-02-23 23:03:51 S 10 23 58.831 +32 33 50.69 V C57
2022-02-23 23:03:51 s 1 -195992.01 0 +118911.38 9310.0 C57
2022-02-23 23:13:51 S 10 23 57.984 +32 34 00.59 V C57
2022-02-23 23:13:51 s 1 -195973.12 9 +118142.42 6000.0 C57
2022-02-23 23:23:51 S 10 23 57.122 +32 34 11.39 V C57
2022-02-23 23:23:51 s 1 -195952.36 6 +117372.34 3960.0 C57
2022-02-23 23:33:51 S 10 23 56.328 +32 34 21.22 V C57
2022-02-23 23:33:51 s 1 -195929.71 2 +116601.13 3160.0 C57
2022-02-23 23:43:51 S 10 23 55.406 +32 34 29.86 V C57
2022-02-23 23:43:51 s 1 -195905.15 6 +115828.79 3560.0 C57
2022-02-23 23:53:51 S 10 23 54.458 +32 34 39.29 V C57
2022-02-23 23:53:51 s 1 -195878.69 1 +115055.33 5110.0 C57
2022-02-24 00:03:51 S 10 23 53.640 +32 34 49.37 V C57
2022-02-24 00:03:51 s 1 -195850.30 8 +114280.75 7780.0 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)