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
2021-10-29 02:43:57 S 05 37 09.847 +16 15 49.68 V C57
2021-10-29 02:43:57 s 1 +123670.82 9 +313583.72 9660.0 C57
2021-10-29 02:53:57 S 05 37 07.529 +16 15 32.11 V C57
2021-10-29 02:53:57 s 1 +123375.21 5 +313946.23 9060.0 C57
2021-10-29 03:33:57 S 05 36 53.345 +16 14 38.40 V C57
2021-10-29 03:33:57 s 1 +122188.31 2 +315384.66 2260.0 C57
2021-10-29 03:43:57 S 05 36 49.488 +16 14 23.75 V C57
2021-10-29 03:43:57 s 1 +121890.48 3 +315741.38 4490.0 C57
2021-10-29 04:03:57 S 05 36 42.758 +16 13 53.36 V C57
2021-10-29 04:03:57 s 1 +121293.51 8 +316451.35 4700.0 C57
2021-10-29 04:43:57 S 05 36 27.910 +16 12 43.16 V C57
2021-10-29 04:43:57 s 1 +120094.40 5 +317857.48 8350.0 C57
2021-10-29 05:03:57 S 05 36 21.842 +16 12 24.37 V C57
2021-10-29 05:03:57 s 1 +119492.28 7 +318553.64 1880.0 C57
2021-10-29 05:13:57 S 05 36 18.130 +16 11 59.42 V C57
2021-10-29 05:13:57 s 1 +119190.59 5 +318900.00 1600.0 C57
2021-10-29 05:43:57 S 05 36 06.962 +16 11 27.02 V C57
2021-10-29 05:43:57 s 1 +118283.00 5 +319932.20 2630.0 C57
2021-10-29 05:53:57 S 05 36 04.243 +16 11 02.87 V C57
2021-10-29 05:53:57 s 1 +117979.64 4 +320273.98 6950.0 C57
2021-10-29 06:03:57 S 05 36 00.298 +16 10 52.10 V C57
2021-10-29 06:03:57 s 1 +117675.87 0 +320614.61 9950.0 C57
2021-10-29 06:13:57 S 05 35 56.933 +16 10 32.20 V C57
2021-10-29 06:13:57 s 1 +117371.68 6 +320954.11 1610.0 C57
2021-10-29 06:23:57 S 05 35 53.249 +16 10 17.47 V C57
2021-10-29 06:23:57 s 1 +117067.09 2 +321292.45 1960.0 C57
2021-10-29 06:43:57 S 05 35 45.542 +16 09 45.58 V C57
2021-10-29 06:43:57 s 1 +116456.68 6 +321965.73 8710.0 C57
2021-10-29 07:23:57 S 05 35 31.250 +16 08 48.44 V C57
2021-10-29 07:23:57 s 1 +115231.04 7 +323298.61 6650.0 C57
2021-10-29 07:33:57 S 05 35 28.546 +16 08 30.59 V C57
2021-10-29 07:33:57 s 1 +114923.64 2 +323628.98 7930.0 C57
2021-10-29 08:43:57 S 05 35 04.598 +16 06 50.47 V C57
2021-10-29 08:43:57 s 1 +112760.86 0 +325909.85 1610.0 C57
2021-10-29 08:53:57 S 05 35 01.339 +16 06 26.03 V C57
2021-10-29 08:53:57 s 1 +112450.34 9 +326231.16 2890.0 C57
2021-10-29 08:59:40 C 05 34 14.69 +15 47 59.7 V 703
2021-10-29 09:06:12 C 05 34 12.48 +15 47 50.1 V 703
2021-10-29 09:12:44 C 05 34 10.20 +15 47 40.5 V 703
2021-10-29 09:53:57 S 05 34 39.766 +16 04 52.57 V C57
2021-10-29 09:53:57 s 1 +110579.34 8 +328135.31 5060.0 C57
2021-10-29 10:13:57 S 05 34 32.654 +16 04 18.52 V C57
2021-10-29 10:13:57 s 1 +109952.70 1 +328761.01 9550.0 C57
2021-10-29 10:43:57 S 05 34 20.930 +16 03 33.98 V C57
2021-10-29 10:43:57 s 1 +109009.98 2 +329691.13 7470.0 C57
2021-10-29 11:03:57 S 05 34 14.350 +16 03 07.34 V C57
2021-10-29 11:03:57 s 1 +108379.69 1 +330305.60 280.0 C57
2021-10-29 14:03:57 S 05 33 10.836 +15 58 28.96 V C57
2021-10-29 14:03:57 s 1 +102644.09 0 +335634.73 4120.0 C57
2021-10-29 14:43:57 S 05 32 56.141 +15 57 15.62 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)