2340 Hathor (1976 UA)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4499362759 ± 2.00e+00
Semi-major axis (a)0.8438607999 AU ± 3.00e+00
Inclination (i)5.86058780° ± 4.00e+00
Long. of Asc. Node (Ω)211.28370419° ± 5.00e+00
Arg. of Perihelion (ω)40.11847477° ± 6.00e+00
Mean Anomaly (M)201.97974796° ± 9.88e-06
Mean Motion (n)1.2714698219°/day ± 6.78e+00
Perihelion dist (q)0.46417721 AU ± 2.36e+00
Aphelion dist (Q)1.22354439 AU ± 4.67e+00
Orbital Period0.77518653 yr ± 4.13e+00
NGA Modelr2
A2-3.12283792e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.41
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual1.084″
Uncertainty0
Orbit TypeAten
MOID0.006333 AU
Observations Used1452
Oppositions15
Arc Total1976-2026
First Observation Used1976-10-22
Last Observation Used2026-01-18
Observations (2217)
Date Type RA Dec Mag Band Observatory
2021-11-04 09:53:57 S 04 43 36.516 +11 47 23.96 V C57
2021-11-04 09:53:57 s 1 -161357.75 1 +193301.26 5010.0 C57
2021-11-04 10:03:57 S 04 43 33.348 +11 47 10.54 V C57
2021-11-04 10:03:57 s 1 -161477.43 9 +192613.30 8370.0 C57
2021-11-04 10:33:57 S 04 43 23.501 +11 46 15.13 V C57
2021-11-04 10:33:57 s 1 -161828.34 9 +190539.81 8300.0 C57
2021-11-04 10:43:57 S 04 43 20.002 +11 45 49.54 V C57
2021-11-04 10:43:57 s 1 -161942.57 6 +189845.42 1470.0 C57
2021-11-04 10:53:57 S 04 43 17.220 +11 45 33.44 V C57
2021-11-04 10:53:57 s 1 -162055.41 9 +189149.42 9520.0 C57
2021-11-04 11:03:57 S 04 43 13.279 +11 45 15.84 V C57
2021-11-04 11:03:57 s 1 -162166.86 8 +188451.80 2420.0 C57
2021-11-04 11:13:57 S 04 43 10.603 +11 44 54.20 V C57
2021-11-04 11:13:57 s 1 -162276.91 7 +187752.57 150.0 C57
2021-11-04 12:13:57 S 04 42 50.018 +11 42 59.22 V C57
2021-11-04 12:13:57 s 1 -162907.34 0 +183523.04 6110.0 C57
2021-11-04 12:43:57 S 04 42 40.745 +11 42 06.26 V C57
2021-11-04 12:43:57 s 1 -163202.97 3 +181386.24 1770.0 C57
2021-11-04 13:03:57 S 04 42 34.073 +11 41 34.73 V C57
2021-11-04 13:03:57 s 1 -163390.78 4 +179953.76 7030.0 C57
2021-11-04 13:13:57 S 04 42 31.368 +11 41 10.64 V C57
2021-11-04 13:13:57 s 1 -163483.48 6 +179234.91 140.0 C57
2021-11-04 13:33:57 S 04 42 24.353 +11 40 36.01 V C57
2021-11-04 13:33:57 s 1 -163664.12 3 +177792.29 9850.0 C57
2021-11-04 13:43:57 S 04 42 21.118 +11 40 16.43 V C57
2021-11-04 13:43:57 s 1 -163752.15 3 +177068.50 6260.0 C57
2021-11-04 13:53:57 S 04 42 18.187 +11 39 58.25 V C57
2021-11-04 13:53:57 s 1 -163838.64 5 +176343.05 7000.0 C57
2021-11-04 14:03:57 S 04 42 14.659 +11 39 37.51 V C57
2021-11-04 14:03:57 s 1 -163923.59 0 +175615.95 2030.0 C57
2021-11-04 14:13:57 S 04 42 11.578 +11 39 21.38 V C57
2021-11-04 14:13:57 s 1 -164006.97 9 +174887.19 1310.0 C57
2021-11-04 14:23:57 S 04 42 08.218 +11 39 01.44 V C57
2021-11-04 14:23:57 s 1 -164088.80 2 +174156.77 4820.0 C57
2021-11-04 14:33:57 S 04 42 04.651 +11 38 40.99 V C57
2021-11-04 14:33:57 s 1 -164169.05 0 +173424.68 2520.0 C57
2021-11-04 14:43:57 S 04 42 01.162 +11 38 20.40 V C57
2021-11-04 14:43:57 s 1 -164247.71 3 +172690.92 4370.0 C57
2021-11-04 14:53:57 S 04 41 58.159 +11 38 04.96 V C57
2021-11-04 14:53:57 s 1 -164324.78 2 +171955.50 350.0 C57
2021-11-04 15:13:57 S 04 41 51.725 +11 37 28.81 V C57
2021-11-04 15:13:57 s 1 -164474.09 9 +170479.64 4530.0 C57
2021-11-04 15:23:57 S 04 41 48.530 +11 37 08.80 V C57
2021-11-04 15:23:57 s 1 -164546.32 8 +169739.20 2650.0 C57
2021-11-04 15:33:57 S 04 41 45.766 +11 36 50.65 V C57
2021-11-04 15:33:57 s 1 -164616.92 4 +168997.08 4760.0 C57
2021-11-04 15:43:57 S 04 41 41.736 +11 36 30.38 V C57
2021-11-04 15:43:57 s 1 -164685.87 6 +168253.28 820.0 C57
2021-11-04 15:53:57 S 04 41 38.671 +11 36 17.21 V C57
2021-11-04 15:53:57 s 1 -164753.17 5 +167507.80 780.0 C57
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-10-20 07:40:00 166355.453 2 Hz 8560 -14 -14
2014-10-20 08:35:00 41303.3259 1 Hz 2380 -1 -1
2014-10-20 08:40:00 49250902.97 3 us 8560 -14 -14
2014-10-20 10:20:00 49138106.93 0.3 us 2380 -1 -1
2014-10-21 07:36:00 17315.52 0.5 Hz 2380 -1 -1
2014-10-21 08:00:00 48261871.2 0.2 us 2380 -1 -1
2014-10-22 09:00:00 48227416.89 2 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)