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
2021-11-02 22:13:57 s 1 -113708.78 8 +307004.25 1090.0 C57
2021-11-02 22:23:57 S 04 55 45.379 +12 54 35.24 V C57
2021-11-02 22:23:57 s 1 -114003.30 1 +306614.71 7450.0 C57
2021-11-02 22:33:57 S 04 55 41.395 +12 54 07.99 V C57
2021-11-02 22:33:57 s 1 -114297.34 6 +306223.95 2030.0 C57
2021-11-02 22:43:57 S 04 55 37.879 +12 53 54.56 V C57
2021-11-02 22:43:57 s 1 -114590.92 0 +305831.96 4820.0 C57
2021-11-02 22:53:57 S 04 55 34.306 +12 53 29.94 V C57
2021-11-02 22:53:57 s 1 -114884.02 1 +305438.74 5810.0 C57
2021-11-02 23:13:57 S 04 55 27.674 +12 52 54.19 V C57
2021-11-02 23:13:57 s 1 -115468.79 7 +304648.60 2390.0 C57
2021-11-02 23:23:57 S 04 55 24.211 +12 52 35.36 V C57
2021-11-02 23:23:57 s 1 -115760.46 7 +304251.68 7950.0 C57
2021-11-03 00:13:57 S 04 55 06.454 +12 51 03.17 V C57
2021-11-03 00:13:57 s 1 -117211.54 4 +302248.54 8180.0 C57
2021-11-03 00:23:57 S 04 55 03.288 +12 50 43.66 V C57
2021-11-03 00:23:57 s 1 -117500.29 0 +301844.19 2650.0 C57
2021-11-03 00:43:57 S 04 54 56.011 +12 50 04.42 V C57
2021-11-03 00:43:57 s 1 -118076.29 3 +301031.76 5950.0 C57
2021-11-03 01:03:57 S 04 54 49.766 +12 49 30.72 V C57
2021-11-03 01:03:57 s 1 -118650.29 6 +300214.36 1680.0 C57
2021-11-03 01:13:57 S 04 54 46.013 +12 48 56.45 V C57
2021-11-03 01:13:57 s 1 -118936.54 1 +299803.78 6680.0 C57
2021-11-03 01:23:57 S 04 54 41.743 +12 48 50.36 V C57
2021-11-03 01:23:57 s 1 -119222.28 0 +299391.96 9760.0 C57
2021-11-03 01:33:57 S 04 54 38.758 +12 48 38.66 V C57
2021-11-03 01:33:57 s 1 -119507.50 9 +298978.89 910.0 C57
2021-11-03 01:43:57 S 04 54 35.292 +12 48 09.90 V C57
2021-11-03 01:43:57 s 1 -119792.22 6 +298564.57 120.0 C57
2021-11-03 01:53:57 S 04 54 31.596 +12 47 49.38 V C57
2021-11-03 01:53:57 s 1 -120076.42 9 +298148.99 7390.0 C57
2021-11-03 02:03:57 S 04 54 27.919 +12 47 39.77 V C57
2021-11-03 02:03:57 s 1 -120360.11 6 +297732.16 2700.0 C57
2021-11-03 02:23:57 S 04 54 21.041 +12 46 56.24 V C57
2021-11-03 02:23:57 s 1 -120925.93 0 +296894.73 7420.0 C57
2021-11-03 02:33:57 S 04 54 17.390 +12 46 42.35 V C57
2021-11-03 02:33:57 s 1 -121208.05 2 +296474.13 6820.0 C57
2021-11-03 03:43:57 S 04 53 53.143 +12 44 23.28 V C57
2021-11-03 03:43:57 s 1 -123168.03 5 +293494.61 6330.0 C57
2021-11-03 03:53:57 S 04 53 49.517 +12 44 07.91 V C57
2021-11-03 03:53:57 s 1 -123445.87 8 +293063.90 9550.0 C57
2021-11-03 04:03:57 S 04 53 46.260 +12 43 48.47 V C57
2021-11-03 04:03:57 s 1 -123723.17 4 +292631.93 700.0 C57
2021-11-03 04:13:57 S 04 53 42.182 +12 43 27.48 V C57
2021-11-03 04:13:57 s 1 -123999.92 2 +292198.68 9790.0 C57
2021-11-03 04:23:57 S 04 53 39.259 +12 43 06.49 V C57
2021-11-03 04:23:57 s 1 -124276.11 8 +291764.16 6780.0 C57
2021-11-03 04:53:57 S 04 53 28.445 +12 42 13.21 V C57
2021-11-03 04:53:57 s 1 -125101.37 3 +290452.94 5190.0 C57
2021-11-03 05:03:57 S 04 53 25.944 +12 41 58.96 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)