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
2021-11-04 16:03:57 S 04 41 35.623 +11 35 58.63 V C57
2021-11-04 16:03:57 s 1 -164818.81 1 +166760.64 4610.0 C57
2021-11-04 16:13:57 S 04 41 32.386 +11 35 34.40 V C57
2021-11-04 16:13:57 s 1 -164882.77 4 +166011.79 2270.0 C57
2021-11-04 16:23:57 S 04 41 29.340 +11 35 18.85 V C57
2021-11-04 16:23:57 s 1 -164945.05 3 +165261.25 3730.0 C57
2021-11-04 16:43:57 S 04 41 22.339 +11 34 36.66 V C57
2021-11-04 16:43:57 s 1 -165064.51 8 +163755.09 7890.0 C57
2021-11-04 16:53:57 S 04 41 18.862 +11 34 27.62 V C57
2021-11-04 16:53:57 s 1 -165121.68 2 +162999.47 510.0 C57
2021-11-04 17:03:57 S 04 41 15.595 +11 33 57.96 V C57
2021-11-04 17:03:57 s 1 -165177.12 1 +162242.16 6780.0 C57
2021-11-04 17:13:57 S 04 41 12.893 +11 33 40.75 V C57
2021-11-04 17:13:57 s 1 -165230.82 4 +161483.14 6650.0 C57
2021-11-04 17:23:57 S 04 41 09.367 +11 33 23.54 V C57
2021-11-04 17:23:57 s 1 -165282.77 9 +160722.43 90.0 C57
2021-11-04 17:33:57 S 04 41 06.535 +11 33 11.52 V C57
2021-11-04 17:33:57 s 1 -165332.97 6 +159960.01 7050.0 C57
2021-11-04 17:43:57 S 04 41 02.760 +11 32 47.00 V C57
2021-11-04 17:43:57 s 1 -165381.40 3 +159195.88 7510.0 C57
2021-11-04 17:53:57 S 04 41 01.034 +11 32 36.46 V C57
2021-11-04 17:53:57 s 1 -165428.05 0 +158430.05 1400.0 C57
2021-11-04 18:03:57 S 04 40 57.180 +11 32 20.26 V C57
2021-11-04 18:03:57 s 1 -165472.90 5 +157662.51 8710.0 C57
2021-11-04 18:53:57 S 04 40 40.229 +11 30 36.07 V C57
2021-11-04 18:53:57 s 1 -165669.90 6 +153799.07 4870.0 C57
2021-11-04 19:13:57 S 04 40 33.619 +11 29 57.88 V C57
2021-11-04 19:13:57 s 1 -165735.76 1 +152241.66 1720.0 C57
2021-11-04 19:23:57 S 04 40 30.670 +11 29 42.97 V C57
2021-11-04 19:23:57 s 1 -165765.86 7 +151460.36 4770.0 C57
2021-11-04 19:33:57 S 04 40 27.430 +11 29 24.47 V C57
2021-11-04 19:33:57 s 1 -165794.07 6 +150677.34 840.0 C57
2021-11-04 19:53:57 S 04 40 21.262 +11 28 45.66 V C57
2021-11-04 19:53:57 s 1 -165844.75 4 +149106.10 1880.0 C57
2021-11-04 20:03:57 S 04 40 17.729 +11 28 25.72 V C57
2021-11-04 20:03:57 s 1 -165867.19 8 +148317.88 6770.0 C57
2021-11-04 20:23:57 S 04 40 11.990 +11 27 59.72 V C57
2021-11-04 20:23:57 s 1 -165906.23 3 +146736.24 5020.0 C57
2021-11-04 20:33:57 S 04 40 08.405 +11 27 31.07 V C57
2021-11-04 20:33:57 s 1 -165922.79 8 +145942.81 8300.0 C57
2021-11-04 20:43:57 S 04 40 04.798 +11 27 09.83 V C57
2021-11-04 20:43:57 s 1 -165937.37 9 +145147.63 4290.0 C57
2021-11-04 20:53:57 S 04 40 01.997 +11 26 53.48 V C57
2021-11-04 20:53:57 s 1 -165949.96 1 +144350.72 2930.0 C57
2021-11-04 21:13:57 S 04 39 55.807 +11 26 21.05 V C57
2021-11-04 21:13:57 s 1 -165969.07 9 +142751.65 8020.0 C57
2021-11-04 21:23:57 S 04 39 52.255 +11 26 02.15 V C57
2021-11-04 21:23:57 s 1 -165975.58 7 +141949.50 4360.0 C57
2021-11-04 21:33:57 S 04 39 49.385 +11 25 41.95 V C57
2021-11-04 21:33:57 s 1 -165980.04 5 +141145.60 3160.0 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)