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
2017-03-05 05:43:22 C 11 46 29.41 +23 19 57.8 V G45
2017-03-05 05:46:14 C 11 46 29.16 +23 19 59.7 V G45
2017-03-05 08:17:36 C 11 46 18.10 +23 20 34.2 V G45
2017-03-05 09:36:42 C 11 46 12.30 +23 20 51.8 V G45
2017-03-05 09:37:39 C 11 46 12.24 +23 20 52.3 V G45
2017-03-06 17:28:05 C 11 43 56.76 +23 27 44.6 q D29
2017-03-06 17:56:55 C 11 43 54.71 +23 27 49.8 q D29
2017-03-06 18:25:46 C 11 43 52.57 +23 27 56.7 q D29
2017-03-07 08:20:59 C 11 42 53.48 +23 30 43.6 q G96
2017-03-07 08:27:09 C 11 42 52.99 +23 30 44.6 q G96
2017-03-07 08:33:20 C 11 42 52.51 +23 30 45.6 q G96
2017-03-07 08:39:29 C 11 42 52.10 +23 30 46.7 q G96
2017-03-21 06:59:43 C 11 20 23.986 +23 57 27.03 L F51
2017-03-21 07:18:10 C 11 20 22.831 +23 57 26.59 L F51
2017-03-21 07:36:31 C 11 20 21.677 +23 57 26.11 L F51
2017-03-28 07:17:31 C 11 11 00.587 +23 42 40.76 L F51
2017-03-28 07:36:31 C 11 10 59.579 +23 42 38.28 L F51
2017-03-28 07:55:34 C 11 10 58.591 +23 42 35.84 L F51
2017-03-28 08:14:47 C 11 10 57.564 +23 42 33.33 L F51
2018-09-15 12:23:26 S 19 31 34.130 -52 54 12.89 L C51
2018-09-15 17:06:44 S 19 31 40.654 -52 51 34.24 L C51
2018-09-16 11:56:50 S 19 32 08.914 -52 40 48.29 L C51
2018-09-20 00:45:26 S 19 34 58.399 -51 49 06.13 L C51
2018-10-26 05:45:37 C 20 52 48.21 -36 55 24.7 U T05
2018-10-26 06:00:11 C 20 52 49.86 -36 55 02.7 U T05
2018-10-26 06:14:42 C 20 52 51.54 -36 54 40.1 U T05
2018-10-26 06:31:07 C 20 52 53.51 -36 54 15.4 U T05
2018-11-09 06:48:04 C 21 37 09.19 -26 57 27.0 U T08
2018-11-09 07:00:42 C 21 37 10.87 -26 57 01.3 U T08
2018-11-09 07:13:22 C 21 37 12.51 -26 56 35.6 U T08
2018-11-09 07:26:04 C 21 37 14.23 -26 56 11.1 U T08
2018-11-12 02:17:53 C 21 46 34.04 -24 36 38.4 V 703
2018-11-12 02:34:16 C 21 46 36.24 -24 36 01.9 V 703
2018-11-12 02:42:28 C 21 46 37.39 -24 35 44.4 V 703
2018-11-13 06:18:06 C 21 50 30.25 -23 36 03.0 U T08
2018-11-13 06:31:21 C 21 50 32.05 -23 35 33.0 U T08
2018-11-13 06:44:02 C 21 50 33.77 -23 35 05.2 U T08
2018-11-13 06:57:21 C 21 50 35.57 -23 34 35.8 U T08
2018-11-21 06:34:35 C 22 18 13.88 -16 10 19.6 U T08
2018-11-21 06:47:13 C 22 18 15.58 -16 09 49.5 U T08
2018-11-21 06:57:54 C 22 18 17.09 -16 09 23.8 U T08
2018-11-21 06:59:14 C 22 18 17.20 -16 09 19.7 U T08
2018-11-27 06:16:37 C 22 39 38.13 -10 08 32.6 U T05
2018-11-27 06:28:42 C 22 39 39.90 -10 08 01.4 U T05
2018-11-27 06:40:44 C 22 39 41.61 -10 07 30.5 U T05
2018-11-27 06:54:08 C 22 39 43.55 -10 06 55.7 U T05
2018-11-28 03:01:49 C 22 42 46.61 -09 14 52.9 V 703
2018-11-28 03:09:36 C 22 42 47.78 -09 14 32.7 V 703
2018-11-28 03:17:23 C 22 42 48.92 -09 14 12.6 V 703
2018-11-28 03:25:11 C 22 42 50.04 -09 13 52.0 V 703
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)