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
2021-11-01 20:13:57 s 1 -63245.132 0 +353384.18 5610.0 C57
2021-11-01 20:23:57 S 05 04 59.314 +13 43 06.02 V C57
2021-11-01 20:23:57 s 1 -63590.611 0 +353174.50 9010.0 C57
2021-11-01 20:33:57 S 05 04 55.961 +13 42 44.82 V C57
2021-11-01 20:33:57 s 1 -63935.881 0 +352963.72 1570.0 C57
2021-11-01 20:53:57 S 05 04 49.349 +13 42 07.24 V C57
2021-11-01 20:53:57 s 1 -64625.785 0 +352538.87 4150.0 C57
2021-11-01 21:03:57 S 05 04 44.954 +13 41 49.88 V C57
2021-11-01 21:03:57 s 1 -64970.418 0 +352324.80 4170.0 C57
2021-11-01 21:23:57 S 05 04 37.594 +13 41 17.56 V C57
2021-11-01 21:23:57 s 1 -65659.037 0 +351893.37 1630.0 C57
2021-11-01 21:33:57 S 05 04 34.776 +13 40 55.56 V C57
2021-11-01 21:33:57 s 1 -66003.022 0 +351676.01 9060.0 C57
2021-11-01 22:03:57 S 05 04 24.360 +13 40 07.97 V C57
2021-11-01 22:03:57 s 1 -67033.657 0 +351017.34 6110.0 C57
2021-11-01 22:13:57 S 05 04 20.081 +13 39 40.36 V C57
2021-11-01 22:13:57 s 1 -67376.759 0 +350795.59 30.0 C57
2021-11-01 22:23:57 S 05 04 16.778 +13 39 23.29 V C57
2021-11-01 22:23:57 s 1 -67719.636 0 +350572.73 3060.0 C57
2021-11-01 22:33:57 S 05 04 12.910 +13 39 02.95 V C57
2021-11-01 22:33:57 s 1 -68062.288 0 +350348.77 5190.0 C57
2021-11-01 22:53:57 S 05 04 06.050 +13 38 30.80 V C57
2021-11-01 22:53:57 s 1 -68746.912 0 +349897.55 6760.0 C57
2021-11-01 23:03:57 S 05 04 02.407 +13 38 12.88 V C57
2021-11-01 23:03:57 s 1 -69088.880 0 +349670.28 6180.0 C57
2021-11-01 23:33:57 S 05 03 51.199 +13 37 12.50 V C57
2021-11-01 23:33:57 s 1 -70113.395 0 +348981.86 8930.0 C57
2021-11-01 23:53:57 S 05 03 44.278 +13 36 36.11 V C57
2021-11-01 23:53:57 s 1 -70795.234 0 +348517.38 9460.0 C57
2021-11-02 00:03:57 S 05 03 40.190 +13 36 21.17 V C57
2021-11-02 00:03:57 s 1 -71135.798 0 +348283.48 3320.0 C57
2021-11-02 00:23:57 S 05 03 34.044 +13 35 39.52 V C57
2021-11-02 00:23:57 s 1 -71816.208 0 +347812.36 8210.0 C57
2021-11-02 00:33:57 S 05 03 30.494 +13 35 29.58 V C57
2021-11-02 00:33:57 s 1 -72156.051 0 +347575.14 9220.0 C57
2021-11-02 00:53:57 S 05 03 23.642 +13 34 41.63 V C57
2021-11-02 00:53:57 s 1 -72835.008 0 +347097.36 8370.0 C57
2021-11-02 01:33:57 S 05 03 08.297 +13 33 27.83 V C57
2021-11-02 01:33:57 s 1 -74189.963 0 +346128.47 5000.0 C57
2021-11-02 01:53:57 S 05 03 01.272 +13 32 53.63 V C57
2021-11-02 01:53:57 s 1 -74865.938 0 +345637.35 2400.0 C57
2021-11-02 02:23:57 S 05 02 50.681 +13 31 53.40 V C57
2021-11-02 02:23:57 s 1 -75877.993 0 +344892.30 6000.0 C57
2021-11-02 02:33:57 S 05 02 46.718 +13 31 39.58 V C57
2021-11-02 02:33:57 s 1 -76214.829 0 +344641.72 5180.0 C57
2021-11-02 02:53:57 S 05 02 40.058 +13 31 06.78 V C57
2021-11-02 02:53:57 s 1 -76887.722 0 +344137.20 480.0 C57
2021-11-02 03:13:57 S 05 02 32.645 +13 30 28.40 V C57
2021-11-02 03:13:57 s 1 -77559.565 0 +343628.20 1650.0 C57
2021-11-02 03:43:57 S 05 02 22.171 +13 29 28.25 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)