442037 (2010 PR66)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6874058441 ± 3.30e-09
Semi-major axis (a)2.9280577863 AU ± 5.94e-10
Inclination (i)17.60363564° ± 1.92e-06
Long. of Asc. Node (Ω)292.74746684° ± 1.48e-06
Arg. of Perihelion (ω)319.52529870° ± 1.65e-06
Mean Anomaly (M)29.00021885° ± 3.31e-07
Mean Motion (n)0.1967174160°/day ± 5.98e-11
Perihelion dist (q)0.91529375 AU ± 9.66e-09
Aphelion dist (Q)4.94082182 AU ± 9.71e-09
Orbital Period5.01036616 yr ± 1.52e-09
Physical Parameters
H (abs. magnitude)19.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.276″
Uncertainty0
Orbit TypeApollo
MOID0.002734 AU
Observations Used628
Radar Obs Used4
Oppositions4
Arc Total2010-2025
First Observation Used2010-04-18
Last Observation Used2025-08-23
Observations (667)
Date Type RA Dec Mag Band Observatory
2015-08-09 20:34:39 C 19 20 23.83 +16 58 45.6 17.2 v B18
2015-08-09 20:36:02 C 19 20 24.03 +16 58 45.8 17.3 v B18
2015-08-09 20:37:25 C 19 20 24.24 +16 58 46.0 17.3 v B18
2015-08-11 22:13:21 C 19 27 42.30 +17 02 43.3 q 160
2015-08-11 22:16:55 C 19 27 42.77 +17 02 43.4 q 160
2015-08-11 22:20:17 C 19 27 43.20 +17 02 43.5 q 160
2015-08-12 06:08:02 C 19 28 45.56 +17 02 57.8 q H45
2015-08-12 06:10:04 C 19 28 45.71 +17 02 57.8 q H45
2015-08-12 06:14:11 C 19 28 46.26 +17 02 57.8 q H45
2015-08-12 06:17:48 C 19 28 46.72 +17 02 57.8 q H45
2015-08-12 06:20:15 C 19 28 47.04 +17 02 57.7 q H45
2015-08-12 06:22:23 C 19 28 47.30 +17 02 57.7 q H45
2015-08-12 20:54:55 C 19 30 41.93 +17 02 48.3 q C23
2015-08-12 20:59:01 C 19 30 42.41 +17 02 48.8 q C23
2015-08-12 21:03:54 C 19 30 42.98 +17 02 50.4 q C23
2015-08-14 04:56:24 C 19 34 35.23 +17 01 46.1 q H45
2015-08-14 05:03:57 C 19 34 36.02 +17 01 45.6 q H45
2015-08-14 05:06:55 C 19 34 36.34 +17 01 45.6 q H45
2015-08-14 05:09:29 C 19 34 36.65 +17 01 45.3 q H45
2015-08-14 05:11:33 C 19 34 36.87 +17 01 45.1 q H45
2015-08-14 05:14:28 C 19 34 37.16 +17 01 44.9 q H45
2015-08-15 20:28:38 C 19 38 58.80 +16 58 09.1 q G34
2015-08-15 20:32:53 C 19 38 59.16 +16 58 09.1 q G34
2015-09-27 04:32:07 C 20 43 45.48 +12 04 00.2 o 695
2015-09-27 04:39:02 C 20 43 45.86 +12 03 58.3 o 695
2015-09-27 04:45:58 C 20 43 46.21 +12 03 56.4 o 695
2015-09-29 04:19:53 C 20 46 22.99 +11 51 03.1 o 695
2015-09-29 04:25:55 C 20 46 23.30 +11 51 01.5 o 695
2015-09-29 04:31:55 C 20 46 23.61 +11 51 00.0 o 695
2015-10-01 04:53:24 C 20 49 03.51 +11 38 24.4 o 291
2015-10-01 04:59:08 C 20 49 03.81 +11 38 22.6 o 291
2015-10-11 01:52:32 C 21 02 18.64 +10 44 32.1 u H21
2015-10-11 02:13:10 C 21 02 19.73 +10 44 27.6 u H21
2015-10-11 02:33:32 C 21 02 20.83 +10 44 24.3 u H21
2015-10-12 02:51:19 C 21 03 43.85 +10 39 42.0 o 291
2015-10-12 03:10:18 C 21 03 44.90 +10 39 39.0 o 291
2015-10-12 03:32:25 C 21 03 46.12 +10 39 34.1 o 291
2015-10-15 01:03:50 C 21 07 44.43 +10 26 52.8 u H21
2015-10-15 01:24:09 C 21 07 45.57 +10 26 49.7 u H21
2015-10-15 01:44:12 C 21 07 46.68 +10 26 45.8 u H21
2015-10-18 00:33:09 C 21 11 51.50 +10 15 09.6 u H21
2015-10-18 00:57:13 C 21 11 52.85 +10 15 05.5 u H21
2015-10-18 01:12:12 C 21 11 53.67 +10 15 03.5 u H21
2015-10-19 00:34:16 C 21 13 14.91 +10 11 33.3 u H21
2015-10-19 01:04:13 C 21 13 16.57 +10 11 29.0 u H21
2015-10-19 01:32:02 C 21 13 18.12 +10 11 24.9 u H21
2015-10-19 01:44:04 C 21 13 18.82 +10 11 23.5 u H21
2020-02-17 06:20:42 C 09 17 06.91 -05 27 02.4 V G96
2020-02-17 06:28:48 C 09 17 06.26 -05 27 05.4 V G96
2020-02-17 06:36:55 C 09 17 05.59 -05 27 07.8 V G96
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-07-27 01:25:00 85268750.32 4 us 2380 -1 -1
2015-07-27 02:11:00 85490097.86 0.5 us 2380 -1 -1
2015-07-28 01:36:00 92536687.89 0.5 us 2380 -1 -1
2015-07-29 01:31:00 100262361.6 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)