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 10:33:57 s 1 -92050.381 0 +331285.58 8250.0 C57
2021-11-02 10:43:57 S 04 59 52.805 +13 16 35.33 V C57
2021-11-02 10:43:57 s 1 -92372.733 0 +330979.34 1090.0 C57
2021-11-02 10:53:57 S 04 59 49.116 +13 16 07.21 V C57
2021-11-02 10:53:57 s 1 -92694.750 0 +330671.94 2640.0 C57
2021-11-02 11:03:57 S 04 59 45.394 +13 15 51.44 V C57
2021-11-02 11:03:57 s 1 -93016.430 0 +330363.38 2890.0 C57
2021-11-02 11:33:57 S 04 59 34.970 +13 14 51.97 V C57
2021-11-02 11:33:57 s 1 -93979.434 0 +329430.76 5790.0 C57
2021-11-02 11:43:57 S 04 59 31.505 +13 14 35.77 V C57
2021-11-02 11:43:57 s 1 -94299.750 0 +329117.57 780.0 C57
2021-11-02 11:53:57 S 04 59 27.799 +13 14 16.12 V C57
2021-11-02 11:53:57 s 1 -94619.722 0 +328803.21 4450.0 C57
2021-11-02 12:13:57 S 04 59 21.024 +13 13 46.67 V C57
2021-11-02 12:13:57 s 1 -95258.623 0 +328171.01 7760.0 C57
2021-11-02 12:23:57 S 04 59 17.376 +13 13 24.89 V C57
2021-11-02 12:23:57 s 1 -95577.549 0 +327853.17 7400.0 C57
2021-11-02 12:33:57 S 04 59 13.771 +13 12 57.17 V C57
2021-11-02 12:33:57 s 1 -95896.123 0 +327534.16 5690.0 C57
2021-11-02 12:53:57 S 04 59 06.624 +13 12 29.59 V C57
2021-11-02 12:53:57 s 1 -96532.208 0 +326892.64 8160.0 C57
2021-11-02 13:03:57 S 04 59 02.609 +13 11 58.88 V C57
2021-11-02 13:03:57 s 1 -96849.716 0 +326570.12 2350.0 C57
2021-11-02 13:23:57 S 04 58 55.642 +13 11 26.48 V C57
2021-11-02 13:23:57 s 1 -97483.653 0 +325921.59 6570.0 C57
2021-11-02 13:33:57 S 04 58 51.977 +13 11 09.42 V C57
2021-11-02 13:33:57 s 1 -97800.078 0 +325595.57 6590.0 C57
2021-11-02 13:43:57 S 04 58 48.766 +13 10 52.57 V C57
2021-11-02 13:43:57 s 1 -98116.140 0 +325268.38 5210.0 C57
2021-11-02 13:53:57 S 04 58 45.442 +13 10 34.61 V C57
2021-11-02 13:53:57 s 1 -98431.835 0 +324940.01 2430.0 C57
2021-11-02 14:03:57 S 04 58 41.803 +13 10 12.32 V C57
2021-11-02 14:03:57 s 1 -98747.163 0 +324610.47 8240.0 C57
2021-11-02 14:23:57 S 04 58 34.786 +13 09 41.87 V C57
2021-11-02 14:23:57 s 1 -99376.709 0 +323947.86 5590.0 C57
2021-11-02 14:33:57 S 04 58 30.888 +13 09 18.90 V C57
2021-11-02 14:33:57 s 1 -99690.923 0 +323614.80 7120.0 C57
2021-11-02 14:43:57 S 04 58 27.562 +13 09 00.72 V C57
2021-11-02 14:43:57 s 1 -100004.76 2 +323280.55 7220.0 C57
2021-11-02 14:53:57 S 04 58 23.926 +13 08 42.04 V C57
2021-11-02 14:53:57 s 1 -100318.22 4 +322945.13 5870.0 C57
2021-11-02 15:13:57 S 04 58 16.973 +13 08 01.21 V C57
2021-11-02 15:13:57 s 1 -100944.01 1 +322270.74 8810.0 C57
2021-11-02 15:23:57 S 04 58 13.414 +13 07 42.28 V C57
2021-11-02 15:23:57 s 1 -101256.33 2 +321931.78 3080.0 C57
2021-11-02 15:43:57 S 04 58 05.808 +13 07 06.60 V C57
2021-11-02 15:43:57 s 1 -101879.82 1 +321250.30 7210.0 C57
2021-11-02 15:53:57 S 04 58 02.976 +13 06 41.90 V C57
2021-11-02 15:53:57 s 1 -102190.98 4 +320907.79 7050.0 C57
2021-11-02 16:13:57 S 04 57 55.574 +13 06 11.27 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)