30825 (1990 TG1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6809203473 ± 2.83e-09
Semi-major axis (a)2.4362810357 AU ± 4.82e-10
Inclination (i)8.73644388° ± 8.51e-07
Long. of Asc. Node (Ω)205.01518997° ± 5.97e-06
Arg. of Perihelion (ω)33.67138835° ± 5.96e-06
Mean Anomaly (M)144.17930526° ± 5.95e-07
Mean Motion (n)0.2591917651°/day ± 7.69e-11
Perihelion dist (q)0.77736771 AU ± 6.90e-09
Aphelion dist (Q)4.09519436 AU ± 6.95e-09
Orbital Period3.80269135 yr ± 1.13e-09
Physical Parameters
H (abs. magnitude)14.73
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.198″
Uncertainty0
Orbit TypeApollo
MOID0.069625 AU
Observations Used3131
Radar Obs Used2
Oppositions11
Arc Total1990-2026
First Observation Used1990-09-16
Last Observation Used2026-01-09
Observations (3512)
Date Type RA Dec Mag Band Observatory
2025-12-13 05:22:55 C 02 42 17.936 +10 46 33.04 X F51
2025-12-13 05:38:28 C 02 42 17.549 +10 46 31.61 X F51
2025-12-13 05:54:00 C 02 42 17.160 +10 46 29.90 X F51
2025-12-13 06:09:32 C 02 42 16.770 +10 46 28.42 X F51
2025-12-16 14:00:31 C 02 40 25.48 +10 38 39.6 V D29
2025-12-16 14:41:14 C 02 40 24.57 +10 38 35.4 V D29
2025-12-17 12:43:18 C 02 39 55.98 +10 36 38.0 V D29
2025-12-17 13:03:40 C 02 39 55.54 +10 36 36.5 V D29
2026-01-09 07:09:22 C 02 33 08.338 +10 14 51.30 X F52
2026-01-09 07:27:14 C 02 33 08.262 +10 14 51.24 X F52
2026-01-09 07:45:02 C 02 33 08.192 +10 14 51.44 X F52
2026-01-09 08:02:58 C 02 33 08.118 +10 14 51.45 X F52
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-04-18 15:03:00 -200938.8659 2 Hz 2380 -1 -1
2005-04-18 15:56:00 189568822.48 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)