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
2015-08-11 01:16:41 C 20 07 38.85 -09 16 01.6 q Y00
2015-08-11 01:17:59 C 20 07 39.13 -09 15 38.1 q Y00
2015-08-11 01:20:31 C 20 07 39.65 -09 14 53.9 q Y00
2015-08-11 01:21:34 C 20 07 39.85 -09 14 35.4 q Y00
2015-08-11 01:22:37 C 20 07 40.06 -09 14 16.9 q Y00
2015-08-11 01:23:23 C 20 07 40.22 -09 14 03.9 q Y00
2015-08-11 01:23:50 C 20 07 40.27 -09 13 55.8 q Y00
2015-08-11 01:24:23 C 20 07 40.42 -09 13 45.9 q Y00
2015-08-11 02:37:11 C 20 08 11.71 -08 58 05.1 q H36
2015-08-11 02:39:48 C 20 08 12.31 -08 57 19.7 q H36
2015-08-11 02:49:32 C 20 08 14.56 -08 54 32.9 q H36
2015-08-11 02:54:54 C 20 08 15.79 -08 53 00.9 q H36
2015-08-11 02:56:50 C 20 08 16.23 -08 52 27.5 q H36
2015-08-11 03:05:16 C 20 08 15.81 -08 50 09.1 u H21
2015-08-11 03:07:13 C 20 08 16.25 -08 49 35.7 u H21
2015-08-11 03:09:11 C 20 08 16.68 -08 49 02.1 u H21
2015-08-11 03:13:06 C 20 08 17.54 -08 47 55.0 u H21
2015-08-11 03:15:04 C 20 08 17.97 -08 47 21.4 u H21
2015-08-11 03:17:01 C 20 08 18.41 -08 46 47.8 u H21
2015-08-11 03:18:59 C 20 08 18.83 -08 46 14.4 u H21
2015-08-11 03:20:57 C 20 08 19.26 -08 45 40.9 u H21
2015-08-11 03:22:54 C 20 08 19.69 -08 45 07.5 u H21
2015-08-11 03:24:52 C 20 08 20.12 -08 44 34.0 u H21
2015-08-11 03:28:47 C 20 08 20.97 -08 43 27.1 u H21
2015-08-11 03:30:45 C 20 08 21.40 -08 42 53.8 u H21
2015-08-11 03:33:18 C 20 08 21.94 -08 42 10.4 u H21
2015-08-11 05:19:37 C 20 08 44.33 -08 12 15.3 r H21
2015-08-11 05:24:38 C 20 08 45.37 -08 10 51.3 r H21
2015-08-11 05:29:08 C 20 08 46.31 -08 09 36.0 r H21
2015-08-11 11:30:01 C 20 10 35.94 -06 26 56.3 16.4 t Q62
2015-08-11 11:30:55 C 20 10 36.10 -06 26 42.9 16.6 t Q62
2015-08-11 11:32:53 C 20 10 36.47 -06 26 12.1 16.7 t Q62
2015-08-11 11:33:44 C 20 10 36.62 -06 25 59.5 16.5 t Q62
2015-08-11 12:13:22 C 20 10 42.95 -06 15 45.0 q E23
2015-08-11 12:20:51 C 20 10 44.33 -06 13 51.6 q E23
2015-08-11 12:56:20 C 20 10 50.55 -06 04 56.0 q E23
2015-08-11 13:03:50 C 20 10 51.86 -06 03 03.4 q E23
2015-08-11 13:11:21 C 20 10 53.19 -06 01 11.0 q E23
2015-08-12 21:41:49 C 20 17 47.15 +00 31 06.2 q J69
2015-08-12 21:45:44 C 20 17 42.65 +00 31 58.9 t L04
2015-08-12 21:49:10 C 20 17 48.05 +00 32 19.9 q J69
2015-08-12 21:53:46 C 20 17 43.55 +00 33 18.7 t L04
2015-08-12 22:02:10 C 20 17 44.54 +00 34 42.4 t L04
2015-08-12 22:03:25 C 20 17 49.77 +00 34 41.8 q J69
2015-08-12 22:10:42 C 20 17 50.67 +00 35 54.4 q J69
2015-08-13 04:55:03 C 20 18 54.20 +01 40 57.2 u H21
2015-08-13 04:57:07 C 20 18 54.40 +01 41 16.3 u H21
2015-08-13 04:59:11 C 20 18 54.61 +01 41 35.2 u H21
2015-08-13 05:01:15 C 20 18 54.81 +01 41 54.1 u H21
2015-08-13 05:03:19 C 20 18 55.02 +01 42 13.2 u H21
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)