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
2021-11-03 05:03:57 s 1 -125375.33 8 +290013.32 3770.0 C57
2021-11-03 05:13:57 S 04 53 21.398 +12 41 37.82 V C57
2021-11-03 05:13:57 s 1 -125648.73 9 +289572.42 210.0 C57
2021-11-03 05:23:57 S 04 53 18.288 +12 41 22.06 V C57
2021-11-03 05:23:57 s 1 -125921.57 2 +289130.23 4520.0 C57
2021-11-03 05:33:57 S 04 53 14.606 +12 40 58.69 V C57
2021-11-03 05:33:57 s 1 -126193.83 6 +288686.77 6680.0 C57
2021-11-03 05:43:57 S 04 53 11.342 +12 40 32.09 V C57
2021-11-03 05:43:57 s 1 -126465.52 8 +288242.02 6680.0 C57
2021-11-03 05:53:57 S 04 53 07.529 +12 40 11.50 V C57
2021-11-03 05:53:57 s 1 -126736.64 4 +287795.98 4510.0 C57
2021-11-03 06:03:57 S 04 53 04.627 +12 39 57.20 V C57
2021-11-03 06:03:57 s 1 -127007.18 3 +287348.66 160.0 C57
2021-11-03 06:13:57 S 04 53 00.521 +12 39 44.78 V C57
2021-11-03 06:13:57 s 1 -127277.14 1 +286900.05 3620.0 C57
2021-11-03 06:23:57 S 04 52 57.602 +12 39 31.00 V C57
2021-11-03 06:23:57 s 1 -127546.51 7 +286450.16 4890.0 C57
2021-11-03 06:33:57 S 04 52 54.298 +12 39 05.72 V C57
2021-11-03 06:33:57 s 1 -127815.30 6 +285998.97 3950.0 C57
2021-11-03 06:43:57 S 04 52 50.390 +12 38 47.18 V C57
2021-11-03 06:43:57 s 1 -128083.50 7 +285546.49 790.0 C57
2021-11-03 06:53:57 S 04 52 47.028 +12 38 34.48 V C57
2021-11-03 06:53:57 s 1 -128351.11 7 +285092.72 5400.0 C57
2021-11-03 07:03:57 S 04 52 43.834 +12 38 11.54 V C57
2021-11-03 07:03:57 s 1 -128618.13 2 +284637.65 7770.0 C57
2021-11-03 07:13:57 S 04 52 40.418 +12 37 50.34 V C57
2021-11-03 07:13:57 s 1 -128884.55 0 +284181.29 7890.0 C57
2021-11-03 07:23:57 S 04 52 36.734 +12 37 30.29 V C57
2021-11-03 07:23:57 s 1 -129150.36 9 +283723.63 5760.0 C57
2021-11-03 07:33:57 S 04 52 33.158 +12 37 14.12 V C57
2021-11-03 07:33:57 s 1 -129415.58 5 +283264.67 1360.0 C57
2021-11-03 07:43:57 S 04 52 29.549 +12 36 55.30 V C57
2021-11-03 07:43:57 s 1 -129680.19 6 +282804.41 4670.0 C57
2021-11-03 07:53:57 S 04 52 26.273 +12 36 29.92 V C57
2021-11-03 07:53:57 s 1 -129944.19 9 +282342.84 5700.0 C57
2021-11-03 08:03:57 S 04 52 22.956 +12 36 13.97 V C57
2021-11-03 08:03:57 s 1 -130207.59 0 +281879.98 4430.0 C57
2021-11-03 08:13:57 S 04 52 19.342 +12 35 55.25 V C57
2021-11-03 08:13:57 s 1 -130470.36 8 +281415.81 850.0 C57
2021-11-03 08:22:13 C 04 54 18.00 +12 35 07.5 V 703
2021-11-03 08:23:57 S 04 52 15.802 +12 35 39.34 V C57
2021-11-03 08:23:57 s 1 -130732.52 9 +280950.33 4940.0 C57
2021-11-03 08:29:47 C 04 54 15.35 +12 34 54.5 V 703
2021-11-03 08:37:20 C 04 54 12.71 +12 34 42.2 V 703
2021-11-03 08:43:57 S 04 52 08.957 +12 34 58.51 V C57
2021-11-03 08:43:57 s 1 -131254.98 9 +280015.45 6130.0 C57
2021-11-03 08:44:53 C 04 54 09.99 +12 34 29.1 V 703
2021-11-03 08:53:57 S 04 52 05.071 +12 34 42.17 V C57
2021-11-03 08:53:57 s 1 -131515.28 1 +279546.04 3190.0 C57
2021-11-03 09:03:57 S 04 52 02.314 +12 34 25.39 V 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)