2002 AY1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4371315678 ± 9.98e-08
Semi-major axis (a)0.7791607694 AU ± 1.64e-09
Inclination (i)29.89759821° ± 8.14e-06
Long. of Asc. Node (Ω)287.83699184° ± 1.26e-06
Arg. of Perihelion (ω)323.81564638° ± 3.54e-06
Mean Anomaly (M)149.08665955° ± 2.07e-05
Mean Motion (n)1.4330840404°/day ± 4.54e-09
Perihelion dist (q)0.43856500 AU ± 7.77e-08
Aphelion dist (Q)1.11975654 AU ± 7.78e-08
Orbital Period0.68776586 yr ± 2.18e-09
NGA Modelr2
A26.17302453e-14 ± 5.01e-16 AU/d²
Physical Parameters
H (abs. magnitude)20.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.430″
Uncertainty0
Orbit TypeAten
MOID0.007739 AU
Observations Used235
Radar Obs Used11
Oppositions10
Arc Total2002-2024
First Observation Used2002-01-07
Last Observation Used2024-01-14
Observations (265)
Date Type RA Dec Mag Band Observatory
2024-01-12 17:45:05 B 00 25 39.73 -05 08 39.4 X K19
2024-01-12 17:48:36 B 00 25 39.30 -05 09 43.1 X K19
2024-01-12 17:52:08 B 00 25 38.76 -05 10 46.3 X K19
2024-01-13 02:22:33 C 00 24 43.09 -07 36 19.0 V 691
2024-01-13 02:28:01 C 00 24 42.32 -07 37 48.4 V 691
2024-01-13 05:36:41 C 00 24 22.505 -08 27 59.90 V T08
2024-01-13 05:44:20 C 00 24 21.506 -08 30 01.08 V T08
2024-01-13 05:49:12 C 00 24 20.878 -08 31 17.33 V T08
2024-01-13 06:09:56 C 00 24 18.194 -08 36 44.68 V T08
2024-01-13 17:49:20 B 00 23 16.45 -11 30 21.7 X K19
2024-01-13 17:54:42 B 00 23 15.76 -11 31 35.4 X K19
2024-01-13 18:00:11 B 00 23 15.18 -11 32 51.0 X K19
2024-01-14 01:48:19 C 00 22 33.90 -13 16 50.3 V 691
2024-01-14 01:53:58 C 00 22 33.26 -13 18 02.4 V 691
2024-01-14 01:59:38 C 00 22 32.60 -13 19 15.2 V 691
Radar Observations (11)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2002-01-09 20:56:00 -61850.72 1 Hz 2380 -1 -1
2002-01-09 22:34:00 69200091.8 1 us 2380 -1 -1
2002-01-09 23:00:00 69244372.3 1 us 2380 -1 -1
2013-01-06 04:50:00 408751.699 0.5 Hz 8560 -14 -14
2013-01-06 05:30:00 41775360.55 3 us 8560 -14 -14
2013-01-08 02:50:00 -47060.06 0.4 Hz 8560 -14 -14
2013-01-08 03:10:00 38057626.94 2 us 8560 -14 -14
2013-01-08 03:40:00 38069355.87 1 us 8560 -14 -14
2024-01-06 10:20:00 502024.865 0.4 Hz 8560 -14 -14
2024-01-06 11:20:00 44914399.71 1 us 8560 -14 -14
2024-01-08 04:20:00 39103261.59 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)