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 02:24:31 C 19 59 05.61 -17 10 21.3 r Y00
2015-08-10 02:26:40 C 19 59 06.31 -17 09 29.1 r Y00
2015-08-10 02:29:11 C 19 59 07.14 -17 08 28.3 r Y00
2015-08-10 03:37:12 C 19 59 29.48 -16 41 02.3 q Y00
2015-08-10 03:37:41 C 19 59 29.66 -16 40 50.7 q Y00
2015-08-10 03:38:10 C 19 59 29.79 -16 40 38.9 q Y00
2015-08-10 03:38:38 C 19 59 29.97 -16 40 28.2 q Y00
2015-08-10 03:39:11 C 19 59 30.14 -16 40 14.9 q Y00
2015-08-10 03:39:40 C 19 59 30.30 -16 40 03.2 q Y00
2015-08-10 03:40:18 C 19 59 30.51 -16 39 48.0 q Y00
2015-08-10 03:41:06 C 19 59 30.77 -16 39 28.4 q Y00
2015-08-10 03:41:53 C 19 59 31.03 -16 39 10.1 q Y00
2015-08-10 03:42:42 C 19 59 31.31 -16 38 50.3 q Y00
2015-08-10 03:43:23 C 19 59 31.54 -16 38 34.0 q Y00
2015-08-10 03:44:01 C 19 59 31.73 -16 38 18.8 q Y00
2015-08-10 03:44:36 C 19 59 31.94 -16 38 04.6 q Y00
2015-08-10 03:45:08 C 19 59 32.12 -16 37 51.8 q Y00
2015-08-10 03:45:41 C 19 59 32.30 -16 37 38.4 q Y00
2015-08-10 03:50:38 C 19 59 55.88 -16 42 05.7 q H36
2015-08-10 03:51:23 C 19 59 56.14 -16 41 48.0 q H36
2015-08-10 03:56:26 C 19 59 57.84 -16 39 48.3 q H36
2015-08-10 03:57:57 C 19 59 58.35 -16 39 12.4 q H36
2015-08-10 04:07:08 C 20 00 10.12 -16 35 10.2 q U69
2015-08-10 04:13:22 C 20 00 12.31 -16 32 44.1 q U69
2015-08-10 04:19:37 C 20 00 14.47 -16 30 18.0 q U69
2015-08-10 04:28:25 C 20 00 17.51 -16 26 53.0 q U69
2015-08-10 04:29:04 C 20 00 13.13 -16 26 28.9 u H06
2015-08-10 04:30:58 C 20 00 13.74 -16 25 44.6 u H06
2015-08-10 04:36:10 C 20 00 15.45 -16 23 42.2 u H06
2015-08-10 04:37:03 C 20 00 20.43 -16 23 31.2 q U69
2015-08-10 08:10:22 C 20 01 11.77 -14 54 44.1 16.4 q W98
2015-08-10 08:20:33 C 20 01 15.54 -14 50 52.5 16.8 q W98
2015-08-10 08:25:36 C 20 01 17.45 -14 48 58.4 16.2 q W98
2015-08-10 10:50:28 C 20 02 50.45 -13 55 57.3 q E23
2015-08-10 11:03:29 C 20 02 54.24 -13 51 19.5 q E23
2015-08-10 11:07:15 C 20 02 55.34 -13 49 59.8 q E23
2015-08-10 11:10:59 C 20 02 56.41 -13 48 40.0 q E23
2015-08-10 11:14:45 C 20 02 57.49 -13 47 20.1 q E23
2015-08-10 14:30:18 C 20 03 51.87 -12 39 22.9 q Q62
2015-08-10 14:33:50 C 20 03 52.82 -12 38 10.3 q Q62
2015-08-10 14:37:50 C 20 03 53.92 -12 36 47.7 q Q62
2015-08-10 14:42:30 C 20 03 55.18 -12 35 11.9 q Q62
2015-08-10 19:29:41 C 20 05 55.65 -11 08 12.2 q 595
2015-08-10 19:34:28 C 20 05 56.95 -11 06 42.6 q 595
2015-08-10 19:39:16 C 20 05 58.20 -11 05 11.8 q 595
2015-08-10 19:44:10 C 20 05 57.56 -11 03 46.8 o 461
2015-08-10 19:44:36 C 20 05 57.66 -11 03 38.0 o 461
2015-08-10 19:45:04 C 20 05 57.78 -11 03 29.4 o 461
2015-08-10 19:46:00 C 20 05 58.03 -11 03 11.7 o 461
2015-08-10 19:46:29 C 20 05 58.16 -11 03 03.2 o 461
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)