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
2022-02-10 15:43:52 s 1 -154569.06 3 -36513.047 9490.0 C57
2022-02-10 15:53:52 S 10 47 59.280 +25 38 55.36 V C57
2022-02-10 15:53:52 s 1 -153995.87 6 -37348.531 2220.0 C57
2022-02-10 16:03:52 S 10 47 58.469 +25 39 11.05 V C57
2022-02-10 16:03:52 s 1 -153418.32 7 -38182.957 6160.0 C57
2022-02-10 16:13:52 S 10 47 57.629 +25 39 26.28 V C57
2022-02-10 16:13:52 s 1 -152836.39 8 -39016.292 1260.0 C57
2022-02-10 16:23:52 S 10 47 56.758 +25 39 41.90 V C57
2022-02-10 16:23:52 s 1 -152250.07 2 -39848.503 7450.0 C57
2022-02-10 16:33:52 S 10 47 55.858 +25 39 57.24 V C57
2022-02-10 16:33:52 s 1 -151659.33 0 -40679.559 4670.0 C57
2022-02-10 16:43:52 S 10 47 55.018 +25 40 11.96 V C57
2022-02-10 16:43:52 s 1 -151064.15 7 -41509.426 2850.0 C57
2022-02-10 16:53:52 S 10 47 54.209 +25 40 28.06 V C57
2022-02-10 16:53:52 s 1 -150464.53 4 -42338.070 1920.0 C57
2022-02-10 17:03:52 S 10 47 53.398 +25 40 43.00 V C57
2022-02-10 17:03:52 s 1 -149860.44 5 -43165.457 1830.0 C57
2022-02-10 17:13:52 S 10 47 52.519 +25 40 59.27 V C57
2022-02-10 17:13:52 s 1 -149251.87 3 -43991.552 2520.0 C57
2022-02-10 17:23:52 S 10 47 51.672 +25 41 12.66 V C57
2022-02-10 17:23:52 s 1 -148638.80 0 -44816.320 3920.0 C57
2022-02-10 17:33:52 S 10 47 50.878 +25 41 28.07 V C57
2022-02-10 17:33:52 s 1 -148021.21 0 -45639.725 5980.0 C57
2022-02-10 17:43:52 S 10 47 50.011 +25 41 44.20 V C57
2022-02-10 17:43:52 s 1 -147399.08 6 -46461.733 8620.0 C57
2022-02-10 17:53:52 S 10 47 49.097 +25 41 59.24 V C57
2022-02-10 17:53:52 s 1 -146772.41 1 -47282.306 1800.0 C57
2022-02-10 18:33:52 S 10 47 45.809 +25 43 00.48 V C57
2022-02-10 18:33:52 s 1 -144219.87 9 -50549.506 8690.0 C57
2022-02-10 18:43:52 S 10 47 44.911 +25 43 15.60 V C57
2022-02-10 18:43:52 s 1 -143570.20 6 -51362.343 3680.0 C57
2022-02-10 18:53:52 S 10 47 44.112 +25 43 31.12 V C57
2022-02-10 18:53:52 s 1 -142915.88 7 -52173.517 8850.0 C57
2022-02-10 19:03:52 S 10 47 43.250 +25 43 45.70 V C57
2022-02-10 19:03:52 s 1 -142256.90 4 -52982.989 4170.0 C57
2022-02-10 19:13:52 S 10 47 42.439 +25 44 00.78 V C57
2022-02-10 19:13:52 s 1 -141593.24 2 -53790.718 9570.0 C57
2022-02-10 19:23:52 S 10 47 41.638 +25 44 16.01 V C57
2022-02-10 19:23:52 s 1 -140924.88 7 -54596.663 5000.0 C57
2022-02-10 19:33:52 S 10 47 40.750 +25 44 31.34 V C57
2022-02-10 19:33:52 s 1 -140251.82 2 -55400.784 420.0 C57
2022-02-10 19:43:52 S 10 47 39.919 +25 44 47.08 V C57
2022-02-10 19:43:52 s 1 -139574.03 4 -56203.039 5780.0 C57
2022-02-10 19:53:52 S 10 47 39.082 +25 45 02.12 V C57
2022-02-10 19:53:52 s 1 -138891.50 7 -57003.386 1020.0 C57
2022-02-10 20:03:52 S 10 47 38.227 +25 45 18.14 V C57
2022-02-10 20:03:52 s 1 -138204.22 6 -57801.782 6090.0 C57
2022-02-10 20:13:52 S 10 47 37.469 +25 45 32.47 V C57
2022-02-10 20:13:52 s 1 -137512.17 8 -58598.183 960.0 C57
2022-02-10 20:23:52 S 10 47 36.703 +25 45 48.17 V 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)