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
2015-09-03 04:14:15 C 20 45 47.28 +19 01 27.7 u H21
2015-09-04 08:44:57 C 20 46 40.91 +19 06 15.7 o 291
2015-09-04 09:05:02 C 20 46 41.45 +19 06 16.8 o 291
2015-09-15 03:17:56 C 20 56 02.90 +18 59 00.0 u H21
2015-09-15 03:45:25 C 20 56 03.70 +18 58 56.2 u H21
2015-09-15 04:13:55 C 20 56 04.57 +18 58 51.2 u H21
2015-09-16 01:45:15 C 20 56 58.42 +18 55 33.6 u H21
2015-09-16 02:09:10 C 20 56 59.23 +18 55 30.0 u H21
2015-09-16 02:33:08 C 20 57 00.00 +18 55 26.3 u H21
2019-02-04 22:13:11 C 09 13 21.679 +16 39 16.50 V J04
2019-02-04 22:34:31 C 09 13 18.684 +16 39 00.70 V J04
2019-02-04 22:55:48 C 09 13 15.641 +16 38 44.16 V J04
2019-02-05 21:07:48 C 09 10 12.733 +16 20 48.32 V J04
2019-02-05 21:26:17 C 09 10 10.077 +16 20 33.69 V J04
2019-02-05 21:44:44 C 09 10 07.427 +16 20 19.27 V J04
2019-08-20 11:25:09 C 00 33 15.20 +30 49 18.3 o 291
2019-08-20 11:43:30 C 00 33 10.89 +30 49 45.6 o 291
2023-02-13 03:21:47 C 10 10 23.15 +01 03 50.7 V 807
2023-02-13 03:35:06 C 10 10 21.43 +01 03 30.7 V 807
2023-02-13 03:48:25 C 10 10 19.70 +01 03 10.6 V 807
2023-03-01 07:01:18 C 09 09 51.53 -10 03 55.6 o 291
2023-03-01 07:16:52 C 09 09 48.57 -10 04 23.8 o 291
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)