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 16:13:57 s 1 -102812.14 0 +320219.20 2250.0 C57
2021-11-02 16:23:57 S 04 57 51.893 +13 05 50.10 V C57
2021-11-02 16:23:57 s 1 -103122.12 9 +319873.13 7590.0 C57
2021-11-02 16:33:57 S 04 57 48.497 +13 05 32.82 V C57
2021-11-02 16:33:57 s 1 -103431.72 3 +319525.86 1430.0 C57
2021-11-02 16:53:57 S 04 57 41.515 +13 04 46.45 V C57
2021-11-02 16:53:57 s 1 -104049.71 8 +318827.77 4530.0 C57
2021-11-02 17:03:57 S 04 57 37.690 +13 04 34.79 V C57
2021-11-02 17:03:57 s 1 -104358.11 4 +318476.93 3780.0 C57
2021-11-02 17:13:57 S 04 57 33.833 +13 04 16.72 V C57
2021-11-02 17:13:57 s 1 -104666.10 8 +318124.91 1500.0 C57
2021-11-02 17:33:57 S 04 57 27.458 +13 03 35.89 V C57
2021-11-02 17:33:57 s 1 -105280.88 0 +317417.27 2280.0 C57
2021-11-02 17:53:57 S 04 57 20.263 +13 03 01.91 V C57
2021-11-02 17:53:57 s 1 -105894.01 7 +316704.85 6820.0 C57
2021-11-02 18:23:57 S 04 57 09.960 +13 02 00.02 V C57
2021-11-02 18:23:57 s 1 -106810.62 3 +315627.24 1790.0 C57
2021-11-02 18:33:57 S 04 57 05.904 +13 01 47.93 V C57
2021-11-02 18:33:57 s 1 -107115.32 4 +315265.63 6930.0 C57
2021-11-02 18:43:57 S 04 57 02.681 +13 01 23.92 V C57
2021-11-02 18:43:57 s 1 -107419.60 5 +314902.83 470.0 C57
2021-11-02 18:53:57 S 04 56 59.446 +13 01 10.34 V C57
2021-11-02 18:53:57 s 1 -107723.46 4 +314538.82 2400.0 C57
2021-11-02 19:13:57 S 04 56 52.188 +13 00 31.64 V C57
2021-11-02 19:13:57 s 1 -108329.90 6 +313807.18 1390.0 C57
2021-11-02 19:23:57 S 04 56 48.353 +13 00 08.17 V C57
2021-11-02 19:23:57 s 1 -108632.48 5 +313439.56 8430.0 C57
2021-11-02 19:33:57 S 04 56 44.909 +12 59 50.96 V C57
2021-11-02 19:33:57 s 1 -108934.63 4 +313070.72 3840.0 C57
2021-11-02 19:53:57 S 04 56 38.047 +12 59 13.85 V C57
2021-11-02 19:53:57 s 1 -109537.63 2 +312329.43 9710.0 C57
2021-11-02 20:03:57 S 04 56 34.404 +12 58 56.60 V C57
2021-11-02 20:03:57 s 1 -109838.47 7 +311956.96 150.0 C57
2021-11-02 20:23:57 S 04 56 27.173 +12 58 12.29 V C57
2021-11-02 20:23:57 s 1 -110438.84 9 +311208.40 6010.0 C57
2021-11-02 20:43:57 S 04 56 20.402 +12 57 38.05 V C57
2021-11-02 20:43:57 s 1 -111037.45 1 +310454.98 5130.0 C57
2021-11-02 20:53:57 S 04 56 16.699 +12 57 19.62 V C57
2021-11-02 20:53:57 s 1 -111336.08 2 +310076.45 7140.0 C57
2021-11-02 21:03:57 S 04 56 13.157 +12 57 03.67 V C57
2021-11-02 21:03:57 s 1 -111634.26 4 +309696.70 7450.0 C57
2021-11-02 21:23:57 S 04 56 06.660 +12 56 25.80 V C57
2021-11-02 21:23:57 s 1 -112229.27 3 +308933.54 2900.0 C57
2021-11-02 21:33:57 S 04 56 02.750 +12 56 08.30 V C57
2021-11-02 21:33:57 s 1 -112526.09 6 +308550.12 8030.0 C57
2021-11-02 21:53:57 S 04 55 55.634 +12 55 20.10 V C57
2021-11-02 21:53:57 s 1 -113118.36 6 +307779.64 3070.0 C57
2021-11-02 22:03:57 S 04 55 52.130 +12 55 12.43 V C57
2021-11-02 22:03:57 s 1 -113413.80 9 +307392.55 2960.0 C57
2021-11-02 22:13:57 S 04 55 48.900 +12 54 51.98 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)