2015 PK9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2342898269 ± 3.77e-08
Semi-major axis (a)1.2071561950 AU ± 4.20e-09
Inclination (i)11.13027659° ± 3.68e-06
Long. of Asc. Node (Ω)316.12009838° ± 1.05e-06
Arg. of Perihelion (ω)296.81450579° ± 1.01e-05
Mean Anomaly (M)311.81051091° ± 1.99e-05
Mean Motion (n)0.7431339029°/day ± 3.88e-09
Perihelion dist (q)0.92433178 AU ± 4.57e-08
Aphelion dist (Q)1.48998061 AU ± 4.58e-08
Orbital Period1.32631048 yr ± 6.92e-09
Physical Parameters
H (abs. magnitude)23.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.259″
Uncertainty0
Orbit TypeApollo
MOID0.011354 AU
Observations Used242
Radar Obs Used2
Oppositions1
Arc Total2015-2023
First Observation Used2015-08-10
Last Observation Used2023-03-01
Observations (272)
Date Type RA Dec Mag Band Observatory
2015-08-10 19:46:56 C 20 05 58.28 -11 02 54.2 o 461
2015-08-10 19:47:24 C 20 05 58.40 -11 02 45.2 o 461
2015-08-10 19:47:53 C 20 05 58.51 -11 02 35.9 o 461
2015-08-10 19:48:49 C 20 05 58.77 -11 02 18.8 o 461
2015-08-10 20:25:03 C 20 06 08.84 -10 50 56.6 u 118
2015-08-10 20:35:45 C 20 06 11.58 -10 47 35.7 u 118
2015-08-10 20:39:34 C 20 06 12.56 -10 46 23.9 u 118
2015-08-10 20:43:33 C 20 06 13.58 -10 45 09.3 u 118
2015-08-10 20:43:33 C 20 06 19.31 -10 44 45.8 q 958
2015-08-10 20:48:00 C 20 06 14.00 -10 43 44.7 o 461
2015-08-10 20:48:27 C 20 06 14.11 -10 43 35.7 o 461
2015-08-10 20:48:55 C 20 06 14.23 -10 43 26.7 o 461
2015-08-10 20:49:15 C 20 06 20.76 -10 42 59.1 q 958
2015-08-10 20:49:23 C 20 06 14.35 -10 43 18.4 o 461
2015-08-10 20:49:50 C 20 06 14.46 -10 43 09.6 o 461
2015-08-10 20:50:19 C 20 06 14.58 -10 43 00.8 o 461
2015-08-10 20:50:47 C 20 06 14.70 -10 42 52.3 o 461
2015-08-10 20:51:14 C 20 06 14.82 -10 42 43.6 o 461
2015-08-10 20:51:43 C 20 06 14.93 -10 42 34.9 o 461
2015-08-10 20:52:10 C 20 06 15.05 -10 42 26.0 o 461
2015-08-10 20:52:39 C 20 06 15.17 -10 42 17.3 o 461
2015-08-10 20:52:39 C 20 06 16.45 -10 42 20.6 q C47
2015-08-10 20:54:09 C 20 06 22.03 -10 41 28.1 q 958
2015-08-10 20:54:22 C 20 06 16.88 -10 41 48.9 q C47
2015-08-10 20:56:05 C 20 06 17.29 -10 41 16.4 q C47
2015-08-10 20:59:02 C 20 06 23.26 -10 39 57.0 q 958
2015-08-10 20:59:32 C 20 06 18.17 -10 40 12.8 q C47
2015-08-10 21:04:01 C 20 06 24.53 -10 38 24.2 q 958
2015-08-10 21:04:07 C 20 06 19.34 -10 38 46.8 q C47
2015-08-10 21:08:55 C 20 06 25.77 -10 36 53.5 q 958
2015-08-10 21:11:00 C 20 06 21.08 -10 36 38.8 q C47
2015-08-10 21:39:42 C 20 06 33.08 -10 27 27.9 q I93
2015-08-10 21:40:52 C 20 06 31.61 -10 27 04.5 C95
2015-08-10 21:47:00 C 20 06 33.12 -10 25 11.2 C95
2015-08-10 21:47:09 C 20 06 34.92 -10 25 10.1 q I93
2015-08-10 21:53:07 C 20 06 34.64 -10 23 18.3 C95
2015-08-10 21:55:27 C 20 06 36.95 -10 22 37.2 q I93
2015-08-10 22:05:29 C 20 06 37.61 -10 19 30.2 C95
2015-08-10 22:06:13 C 20 06 35.14 -10 19 24.7 r 106
2015-08-10 22:07:50 C 20 06 35.54 -10 18 55.0 r 106
2015-08-10 22:09:27 C 20 06 35.93 -10 18 25.5 r 106
2015-08-10 22:17:22 C 20 06 40.44 -10 15 51.8 C95
2015-08-10 22:20:06 C 20 06 42.97 -10 15 27.2 q J95
2015-08-10 22:21:59 C 20 06 43.43 -10 14 52.7 q J95
2015-08-10 22:23:10 C 20 06 41.83 -10 14 05.4 C95
2015-08-10 22:23:48 C 20 06 43.87 -10 14 19.4 q J95
2015-08-10 23:55:21 C 20 06 59.55 -09 46 11.7 t L04
2015-08-10 23:57:47 C 20 07 00.19 -09 45 27.7 t L04
2015-08-10 23:59:56 C 20 07 00.76 -09 44 48.9 t L04
2015-08-11 00:07:05 C 20 07 02.59 -09 42 39.4 t L04
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-08-15 02:20:00 -129516.6966 0.5 Hz 2380 -1 -1
2015-08-15 02:42:00 42333664.47 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)