217807 (2000 XK44)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3853678080 ± 3.72e-09
Semi-major axis (a)1.7242325547 AU ± 1.39e-09
Inclination (i)11.23606881° ± 2.47e-06
Long. of Asc. Node (Ω)48.09553167° ± 3.14e-06
Arg. of Perihelion (ω)347.67475706° ± 6.37e-06
Mean Anomaly (M)34.48857405° ± 3.76e-06
Mean Motion (n)0.4353299182°/day ± 5.27e-10
Perihelion dist (q)1.05976883 AU ± 6.46e-09
Aphelion dist (Q)2.38869627 AU ± 6.69e-09
Orbital Period2.26409039 yr ± 2.74e-09
Physical Parameters
H (abs. magnitude)18.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.320″
Uncertainty0
Orbit TypeAmor
MOID0.071629 AU
Observations Used494
Radar Obs Used6
Oppositions19
Arc Total1975-2009
First Observation Used1975-07-16
Last Observation Used2026-01-01
Observations (522)
Date Type RA Dec Mag Band Observatory
2001-01-29 05:41:57 C 09 13 08.43 +48 26 42.6 912
2001-01-29 06:17:41 C 09 13 04.92 +48 26 38.7 912
2001-02-11 21:14:43 C 08 47 40.97 +46 49 59.4 046
2001-02-11 21:17:10 C 08 47 40.79 +46 49 58.5 046
2001-02-11 21:19:18 C 08 47 40.68 +46 49 57.2 046
2001-02-11 21:22:21 C 08 47 40.41 +46 49 56.2 046
2001-02-11 21:24:33 C 08 47 40.42 +46 49 55.5 046
2001-02-11 21:27:08 C 08 47 40.16 +46 49 53.9 046
2001-02-13 05:46:36 C 08 45 48.24 +46 34 55.8 19.0 c 704
2001-02-13 06:06:12 C 08 45 46.96 +46 34 46.4 19.4 c 704
2001-02-13 06:25:48 C 08 45 45.68 +46 34 37.3 19.4 c 704
2001-02-13 06:45:25 C 08 45 44.64 +46 34 27.4 19.5 c 704
2001-02-15 05:02:49 C 08 43 18.71 +46 11 40.4 19.0 c 704
2001-02-15 05:22:48 C 08 43 17.69 +46 11 30.6 19.3 c 704
2001-02-15 05:42:46 C 08 43 16.49 +46 11 21.5 18.8 c 704
2001-02-15 06:03:19 C 08 43 15.39 +46 11 10.5 18.9 c 704
2001-02-22 03:09:29 C 08 36 43.83 +44 40 20.4 c 699
2001-02-22 03:50:30 C 08 36 42.30 +44 39 58.1 c 699
2001-02-22 03:53:09 C 08 36 42.121 +44 39 56.13 e 645
2001-02-22 03:58:09 C 08 36 41.959 +44 39 53.24 21.04 e 645
2001-02-22 04:31:27 C 08 36 40.86 +44 39 33.8 c 699
2001-02-22 05:12:22 C 08 36 39.66 +44 39 10.4 c 699
2007-11-08 11:38:27 C 11 11 21.08 +16 01 00.5 o 691
2007-11-08 11:56:36 C 11 11 22.81 +16 00 54.1 o 691
2007-11-08 12:14:43 C 11 11 24.51 +16 00 47.1 o 691
2008-03-07 00:27:23 C 12 21 38.48 +17 09 01.1 r 941
2008-03-07 00:33:02 C 12 21 38.10 +17 09 03.8 r 941
2008-03-07 00:37:33 C 12 21 37.79 +17 09 05.6 r 941
2008-03-13 07:42:00 C 12 11 42.32 +17 48 48.9 r 703
2008-03-13 07:54:28 C 12 11 41.42 +17 48 50.4 r 703
2008-03-13 08:06:55 C 12 11 40.52 +17 48 53.3 r 703
2008-03-13 08:19:22 C 12 11 39.73 +17 48 56.5 r 703
2009-07-17 08:24:00 C 23 24 13.40 -36 27 13.2 r I20
2009-07-17 08:32:38 C 23 24 14.10 -36 27 18.5 r I20
2009-07-17 08:42:02 C 23 24 14.87 -36 27 24.3 r I20
2009-08-23 05:26:03 C 00 43 22.05 -47 32 38.9 r I21
2009-08-23 06:19:05 C 00 43 26.52 -47 33 19.2 r I21
2009-09-08 16:55:22 C 01 20 02.44 -51 32 25.5 r E12
2009-09-08 17:11:25 C 01 20 03.73 -51 32 32.0 r E12
2009-09-08 17:27:30 C 01 20 05.02 -51 32 38.1 r E12
2009-09-30 14:40:58 C 02 10 34.115 -51 09 13.17 r E12
2009-09-30 15:11:47 C 02 10 36.53 -51 08 52.4 r E12
2009-10-11 16:50:30 C 02 37 31.329 -45 30 28.28 r E12
2009-10-11 17:09:04 C 02 37 32.838 -45 29 49.76 r E12
2009-10-11 17:27:43 C 02 37 34.363 -45 29 10.81 r E12
2009-10-11 17:46:24 C 02 37 35.911 -45 28 31.55 r E12
2009-10-20 15:22:47 C 02 59 41.18 -35 06 03.5 r E16
2009-10-20 15:23:55 C 02 59 41.26 -35 05 59.0 r E16
2009-10-20 15:25:09 C 02 59 41.36 -35 05 54.0 r E16
2009-10-20 15:26:10 C 02 59 41.45 -35 05 49.5 r E16
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2009-11-08 05:16:00 75831227.86 1 us 2380 -1 -1
2009-11-08 05:16:00 -30037.1932 0.1 Hz 2380 -1 -1
2009-11-09 04:10:00 76980677.61 1 us 2380 -1 -1
2009-11-09 04:10:00 -35188.4707 0.05 Hz 2380 -1 -1
2009-11-10 04:13:00 78443184.3 1 us 2380 -1 -1
2009-11-10 04:13:00 -42421.6673 0.05 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)