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
2010-01-09 19:28:29 C 05 11 11.54 +56 47 32.1 18.3 u C20
2010-01-18 20:50:59 C 05 25 54.91 +54 43 02.8 18.4 u C20
2010-01-18 20:53:07 C 05 25 55.04 +54 43 01.5 18.5 u C20
2010-01-21 00:18:35 C 05 29 36.76 +54 11 22.7 19.0 u C20
2010-02-28 08:05:45 C 06 43 43.312 +44 30 06.68 L F51
2010-02-28 08:18:24 C 06 43 44.359 +44 29 58.73 L F51
2013-05-07 08:08:23 C 14 49 34.12 -15 19 47.8 u 807
2013-05-07 08:16:10 C 14 49 33.66 -15 19 46.8 u 807
2013-05-07 08:23:58 C 14 49 33.15 -15 19 46.4 u 807
2015-01-23 14:30:48 C 14 01 40.633 -02 10 51.18 L F51
2015-01-23 14:47:32 C 14 01 41.122 -02 10 52.79 L F51
2015-01-23 15:20:56 C 14 01 42.099 -02 10 55.81 L F51
2015-02-23 14:19:24 C 14 10 26.420 -02 10 02.36 L F51
2015-02-23 14:38:12 C 14 10 26.226 -02 10 00.42 L F51
2015-02-23 14:56:59 C 14 10 26.017 -02 09 58.62 L F51
2015-02-23 15:15:45 C 14 10 25.817 -02 09 56.86 L F51
2015-03-25 10:38:23 C 13 47 48.658 -00 07 05.48 L F51
2015-03-25 11:21:14 C 13 47 46.383 -00 06 56.30 L F51
2015-03-25 11:42:50 C 13 47 45.230 -00 06 51.58 L F51
2015-04-16 08:18:22 C 13 17 33.336 +01 32 54.70 L F51
2015-04-16 08:39:12 C 13 17 32.082 +01 32 57.70 L F51
2015-04-16 09:00:06 C 13 17 30.819 +01 33 00.63 L F51
2015-04-16 09:20:59 C 13 17 29.560 +01 33 03.84 L F51
2015-04-18 08:11:44 C 13 14 46.485 +01 39 21.56 L F51
2015-04-18 08:32:42 C 13 14 45.242 +01 39 24.11 L F51
2015-04-18 08:53:38 C 13 14 44.000 +01 39 26.72 L F51
2015-05-21 06:47:25 C 12 42 22.728 +01 38 22.30 L F51
2015-05-21 07:08:04 C 12 42 22.303 +01 38 19.69 L F51
2015-05-21 07:28:42 C 12 42 21.845 +01 38 17.01 L F51
2016-11-18 12:27:04 C 11 13 57.66 +17 24 17.9 q G96
2016-11-18 12:33:24 C 11 13 58.21 +17 24 16.2 q G96
2016-11-18 12:39:51 C 11 13 58.75 +17 24 13.6 q G96
2017-01-04 14:00:48 C 12 24 35.879 +15 35 12.74 L F51
2017-01-04 14:16:53 C 12 24 36.328 +15 35 14.83 L F51
2017-01-04 14:32:55 C 12 24 36.783 +15 35 17.00 L F51
2017-01-04 14:48:56 C 12 24 37.226 +15 35 18.96 L F51
2017-02-04 11:16:41 C 12 25 05.714 +19 06 21.73 L F51
2017-02-04 11:35:22 C 12 25 05.092 +19 06 29.45 L F51
2017-02-04 11:54:01 C 12 25 04.468 +19 06 37.20 L F51
2017-02-04 12:12:39 C 12 25 03.838 +19 06 44.93 L F51
2017-02-22 09:27:57 C 12 04 12.48 +22 01 09.6 q G96
2017-02-22 09:38:29 C 12 04 11.88 +22 01 14.2 q G96
2017-02-22 09:44:45 C 12 04 11.36 +22 01 15.8 q G96
2017-02-22 09:50:53 C 12 04 10.97 +22 01 18.4 q G96
2017-03-02 08:50:59 C 11 51 20.65 +23 02 45.9 R G45
2017-03-02 08:58:59 C 11 51 20.07 +23 02 48.1 R G45
2017-03-02 09:06:16 C 11 51 19.56 +23 02 49.7 R G45
2017-03-02 09:14:05 C 11 51 18.98 +23 02 52.3 R G45
2017-03-05 04:37:18 C 11 46 34.20 +23 19 42.6 V G45
2017-03-05 04:41:32 C 11 46 33.82 +23 19 44.2 V G45
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)