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 03:43:57 s 1 -78565.335 0 +342856.30 600.0 C57
2021-11-02 04:03:57 S 05 02 14.995 +13 28 52.61 V C57
2021-11-02 04:03:57 s 1 -79234.502 0 +342336.08 1290.0 C57
2021-11-02 04:13:57 S 05 02 11.575 +13 28 33.06 V C57
2021-11-02 04:13:57 s 1 -79568.677 0 +342074.29 40.0 C57
2021-11-02 04:23:57 S 05 02 08.100 +13 28 14.59 V C57
2021-11-02 04:23:57 s 1 -79902.578 0 +341811.37 7720.0 C57
2021-11-02 04:33:57 S 05 02 03.854 +13 27 57.24 V C57
2021-11-02 04:33:57 s 1 -80236.203 0 +341547.33 4320.0 C57
2021-11-02 04:43:57 S 05 02 01.099 +13 27 38.27 V C57
2021-11-02 04:43:57 s 1 -80569.551 0 +341282.16 9840.0 C57
2021-11-02 04:53:57 S 05 01 57.163 +13 27 19.08 V C57
2021-11-02 04:53:57 s 1 -80902.621 0 +341015.86 4270.0 C57
2021-11-02 05:03:57 S 05 01 54.137 +13 26 55.10 V C57
2021-11-02 05:03:57 s 1 -81235.410 0 +340748.44 7610.0 C57
2021-11-02 06:03:57 S 05 01 32.489 +13 25 10.38 V C57
2021-11-02 06:03:57 s 1 -83226.183 0 +339120.16 4380.0 C57
2021-11-02 06:13:57 S 05 01 28.423 +13 24 51.30 V C57
2021-11-02 06:13:57 s 1 -83556.971 0 +338844.82 9910.0 C57
2021-11-02 07:03:57 S 05 01 10.774 +13 23 21.88 V C57
2021-11-02 07:03:57 s 1 -85206.496 0 +337451.09 410.0 C57
2021-11-02 07:33:57 S 05 01 00.070 +13 22 23.12 V C57
2021-11-02 07:33:57 s 1 -86192.627 0 +336601.20 2790.0 C57
2021-11-02 07:53:57 S 05 00 53.093 +13 21 45.29 V C57
2021-11-02 07:53:57 s 1 -86848.528 0 +336028.91 1800.0 C57
2021-11-02 08:03:57 S 05 00 49.747 +13 21 30.92 V C57
2021-11-02 08:03:57 s 1 -87176.018 0 +335741.05 4520.0 C57
2021-11-02 08:13:57 S 05 00 45.902 +13 21 05.76 V C57
2021-11-02 08:13:57 s 1 -87503.199 0 +335452.05 6040.0 C57
2021-11-02 08:23:57 S 05 00 42.034 +13 20 46.82 V C57
2021-11-02 08:23:57 s 1 -87830.069 0 +335161.90 6360.0 C57
2021-11-02 08:33:57 S 05 00 38.302 +13 20 30.48 V C57
2021-11-02 08:33:57 s 1 -88156.627 0 +334870.62 5470.0 C57
2021-11-02 08:43:57 S 05 00 34.939 +13 20 12.77 V C57
2021-11-02 08:43:57 s 1 -88482.871 0 +334578.18 3360.0 C57
2021-11-02 08:53:57 S 05 00 31.344 +13 19 52.93 V C57
2021-11-02 08:53:57 s 1 -88808.799 0 +334284.60 30.0 C57
2021-11-02 09:03:57 S 05 00 27.931 +13 19 34.43 V C57
2021-11-02 09:03:57 s 1 -89134.411 0 +333989.87 5480.0 C57
2021-11-02 09:13:57 S 05 00 25.049 +13 19 15.92 V C57
2021-11-02 09:13:57 s 1 -89459.704 0 +333694.00 9690.0 C57
2021-11-02 09:43:57 S 05 00 13.430 +13 18 18.00 V C57
2021-11-02 09:43:57 s 1 -90433.655 0 +332799.48 4850.0 C57
2021-11-02 09:53:57 S 05 00 10.462 +13 18 03.10 V C57
2021-11-02 09:53:57 s 1 -90757.657 0 +332499.01 4070.0 C57
2021-11-02 10:03:57 S 05 00 06.773 +13 17 48.34 V C57
2021-11-02 10:03:57 s 1 -91081.332 0 +332197.38 2020.0 C57
2021-11-02 10:13:57 S 05 00 03.302 +13 17 19.64 V C57
2021-11-02 10:13:57 s 1 -91404.679 0 +331894.60 8710.0 C57
2021-11-02 10:33:57 S 04 59 55.889 +13 16 48.94 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)