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 09:03:57 s 1 -131774.94 6 +279075.33 7900.0 C57
2021-11-03 09:13:57 S 04 51 58.862 +12 34 04.48 V C57
2021-11-03 09:13:57 s 1 -132033.97 9 +278603.30 230.0 C57
2021-11-03 09:23:57 S 04 51 55.109 +12 33 42.30 V C57
2021-11-03 09:23:57 s 1 -132292.37 7 +278129.95 170.0 C57
2021-11-03 09:33:57 S 04 51 51.528 +12 33 26.35 V C57
2021-11-03 09:33:57 s 1 -132550.13 8 +277655.28 7720.0 C57
2021-11-03 09:53:57 S 04 51 44.674 +12 32 45.38 V C57
2021-11-03 09:53:57 s 1 -133063.73 6 +276702.00 5580.0 C57
2021-11-03 10:03:57 S 04 51 40.699 +12 32 25.80 V C57
2021-11-03 10:03:57 s 1 -133319.56 6 +276223.37 5870.0 C57
2021-11-03 10:13:57 S 04 51 37.795 +12 32 08.59 V C57
2021-11-03 10:13:57 s 1 -133574.74 7 +275743.43 3720.0 C57
2021-11-03 10:23:57 S 04 51 34.238 +12 31 51.31 V C57
2021-11-03 10:23:57 s 1 -133829.27 5 +275262.16 9110.0 C57
2021-11-03 10:43:57 S 04 51 27.180 +12 31 13.76 V C57
2021-11-03 10:43:57 s 1 -134336.36 1 +274295.63 2510.0 C57
2021-11-03 10:53:57 S 04 51 23.738 +12 30 52.45 V C57
2021-11-03 10:53:57 s 1 -134588.91 3 +273810.38 480.0 C57
2021-11-03 11:03:57 S 04 51 20.256 +12 30 34.49 V C57
2021-11-03 11:03:57 s 1 -134840.80 0 +273323.79 5950.0 C57
2021-11-03 11:13:57 S 04 51 16.980 +12 30 18.40 V C57
2021-11-03 11:13:57 s 1 -135092.01 8 +272835.87 8920.0 C57
2021-11-03 11:33:57 S 04 51 10.075 +12 29 40.31 V C57
2021-11-03 11:33:57 s 1 -135592.43 7 +271856.03 7280.0 C57
2021-11-03 11:43:57 S 04 51 06.686 +12 29 20.76 V C57
2021-11-03 11:43:57 s 1 -135841.63 1 +271364.10 2650.0 C57
2021-11-03 11:53:57 S 04 51 03.192 +12 28 59.34 V C57
2021-11-03 11:53:57 s 1 -136090.14 5 +270870.84 5460.0 C57
2021-11-03 12:03:57 S 04 51 00.036 +12 28 47.03 V C57
2021-11-03 12:03:57 s 1 -136337.97 4 +270376.23 5700.0 C57
2021-11-03 12:13:57 S 04 50 56.328 +12 28 20.64 V C57
2021-11-03 12:13:57 s 1 -136585.11 5 +269880.29 3370.0 C57
2021-11-03 12:23:57 S 04 50 52.855 +12 28 02.64 V C57
2021-11-03 12:23:57 s 1 -136831.56 6 +269383.00 8440.0 C57
2021-11-03 12:33:57 S 04 50 49.615 +12 27 42.98 V C57
2021-11-03 12:33:57 s 1 -137077.32 2 +268884.36 910.0 C57
2021-11-03 12:41:23 C 04 52 49.49 +12 28 00.1 V T08
2021-11-03 12:43:57 S 04 50 46.169 +12 27 27.72 V C57
2021-11-03 12:43:57 s 1 -137322.38 1 +268384.38 770.0 C57
2021-11-03 12:53:57 S 04 50 42.557 +12 27 09.22 V C57
2021-11-03 12:53:57 s 1 -137566.73 9 +267883.05 7990.0 C57
2021-11-03 12:56:38 C 04 52 44.12 +12 27 34.1 V T08
2021-11-03 13:03:57 S 04 50 38.995 +12 26 47.90 V C57
2021-11-03 13:03:57 s 1 -137810.39 3 +267380.36 2580.0 C57
2021-11-03 13:13:57 S 04 50 35.806 +12 26 29.44 V C57
2021-11-03 13:13:57 s 1 -138053.34 0 +266876.33 4510.0 C57
2021-11-03 13:23:57 S 04 50 32.086 +12 26 10.07 V C57
2021-11-03 13:23:57 s 1 -138295.57 6 +266370.94 3780.0 C57
2021-11-03 13:33:57 S 04 50 28.378 +12 25 46.67 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)