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
2021-10-22 19:53:56 S 06 21 08.825 +19 15 38.27 V C57
2021-10-22 19:53:56 s 1 -173148.54 8 +156741.87 800.0 C57
2021-10-23 04:13:56 S 06 18 42.055 +19 04 21.47 V C57
2021-10-23 04:13:56 s 1 -172901.35 1 +116908.89 9770.0 C57
2021-10-23 05:13:56 S 06 18 24.605 +19 02 56.87 V C57
2021-10-23 05:13:56 s 1 -172500.66 1 +111853.63 4900.0 C57
2021-10-23 06:13:56 S 06 18 06.516 +19 01 40.62 V C57
2021-10-23 06:13:56 s 1 -172009.28 6 +106739.35 2040.0 C57
2021-10-26 14:23:57 S 05 57 15.660 +17 35 59.14 V C57
2021-10-26 14:23:57 s 1 +175435.81 2 +97100.909 4210.0 C57
2021-10-26 18:03:57 S 05 56 08.294 +17 31 40.33 V C57
2021-10-26 18:03:57 s 1 +177732.67 7 +115657.03 6720.0 C57
2021-10-26 18:43:57 S 05 55 55.982 +17 30 58.07 V C57
2021-10-26 18:43:57 s 1 +178021.26 7 +118950.37 1330.0 C57
2021-10-26 20:03:57 S 05 55 31.106 +17 29 28.28 V C57
2021-10-26 20:03:57 s 1 +178487.76 2 +125462.37 7050.0 C57
2021-10-27 03:13:57 S 05 53 14.148 +17 20 58.42 V C57
2021-10-27 03:13:57 s 1 +178730.88 4 +158763.75 5950.0 C57
2021-10-27 08:43:57 S 05 51 26.959 +17 14 15.43 V C57
2021-10-27 08:43:57 s 1 +176715.20 1 +182405.27 2930.0 C57
2021-10-27 11:03:57 S 05 50 40.903 +17 11 16.76 V C57
2021-10-27 11:03:57 s 1 +175372.24 4 +191944.84 6890.0 C57
2021-10-27 15:13:57 S 05 49 19.282 +17 06 02.02 V C57
2021-10-27 15:13:57 s 1 +172337.33 7 +208270.78 1930.0 C57
2021-10-27 15:33:57 S 05 49 11.978 +17 05 29.51 V C57
2021-10-27 15:33:57 s 1 +172061.66 0 +209538.16 3670.0 C57
2021-10-27 16:13:57 S 05 48 58.946 +17 04 39.07 V C57
2021-10-27 16:13:57 s 1 +171496.43 3 +212055.90 850.0 C57
2021-10-27 17:13:57 S 05 48 39.602 +17 03 20.84 V C57
2021-10-27 17:13:57 s 1 +170614.58 5 +215790.18 3170.0 C57
2021-10-27 18:03:57 S 05 48 22.171 +17 02 13.70 V C57
2021-10-27 18:03:57 s 1 +169849.29 2 +218863.48 3650.0 C57
2021-10-27 21:03:57 S 05 47 22.387 +16 58 09.77 V C57
2021-10-27 21:03:57 s 1 +166875.67 9 +229639.88 7140.0 C57
2021-10-27 22:53:57 S 05 46 45.574 +16 55 48.36 V C57
2021-10-27 22:53:57 s 1 +164898.91 7 +236006.66 2100.0 C57
2021-10-28 01:03:57 S 05 46 01.416 +16 52 44.36 V C57
2021-10-28 01:03:57 s 1 +162416.65 9 +243320.25 4220.0 C57
2021-10-28 01:43:57 S 05 45 47.652 +16 51 53.71 V C57
2021-10-28 01:43:57 s 1 +161622.40 1 +245525.10 9030.0 C57
2021-10-28 02:03:57 S 05 45 41.897 +16 51 41.47 V C57
2021-10-28 02:03:57 s 1 +161220.04 8 +246619.56 9090.0 C57
2021-10-28 02:13:57 S 05 45 38.335 +16 51 15.01 V C57
2021-10-28 02:13:57 s 1 +161017.57 9 +247164.80 4840.0 C57
2021-10-28 05:23:57 S 05 44 33.343 +16 47 06.07 V C57
2021-10-28 05:23:57 s 1 +157012.32 2 +257274.42 9060.0 C57
2021-10-28 05:33:57 S 05 44 29.707 +16 46 36.80 V C57
2021-10-28 05:33:57 s 1 +156793.44 5 +257793.45 430.0 C57
2021-10-28 06:43:57 S 05 44 06.187 +16 45 09.07 V C57
2021-10-28 06:43:57 s 1 +155239.59 8 +261390.40 8210.0 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)