199003 (2005 WJ56)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1520194228 ± 9.55e-09
Semi-major axis (a)0.9590116507 AU ± 1.43e-10
Inclination (i)21.61637987° ± 2.38e-06
Long. of Asc. Node (Ω)288.01474602° ± 4.47e-07
Arg. of Perihelion (ω)297.65358928° ± 1.15e-06
Mean Anomaly (M)266.88352734° ± 2.13e-06
Mean Motion (n)1.0494855208°/day ± 2.36e-10
Perihelion dist (q)0.81322325 AU ± 9.16e-09
Aphelion dist (Q)1.10480005 AU ± 9.16e-09
Orbital Period0.93915186 yr ± 2.11e-10
Physical Parameters
H (abs. magnitude)18.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.321″
Uncertainty0
Orbit TypeAten
MOID0.022468 AU
Observations Used1234
Radar Obs Used5
Oppositions1
Arc Total2005-2024
First Observation Used2005-11-29
Last Observation Used2024-11-29
Observations (1308)
Date Type RA Dec Mag Band Observatory
2023-12-28 13:37:43 C 12 21 08.453 -03 11 55.43 V T08
2023-12-28 13:41:59 C 12 21 08.952 -03 12 18.25 V T08
2023-12-28 13:45:42 C 12 21 09.336 -03 12 37.51 V T08
2023-12-29 10:33:23 C 12 23 42.349 -05 03 15.41 V 703
2023-12-29 10:36:41 C 12 23 42.731 -05 03 32.04 V 703
2023-12-29 10:43:19 C 12 23 43.487 -05 04 08.87 V 703
2023-12-30 13:31:04 C 12 27 06.151 -07 29 49.16 V T05
2023-12-30 13:35:37 C 12 27 06.698 -07 30 14.44 V T05
2023-12-30 14:00:27 C 12 27 09.648 -07 32 31.56 V T05
2023-12-30 18:20:47 S 12 27 40.25 -07 56 00.8 L C51
2023-12-30 19:53:45 S 12 27 52.21 -08 04 35.8 L C51
2023-12-30 21:26:44 S 12 28 04.20 -08 13 11.2 L C51
2023-12-30 22:59:42 S 12 28 16.19 -08 21 47.0 L C51
2023-12-31 00:32:40 S 12 28 28.19 -08 30 23.4 L C51
2023-12-31 02:05:38 S 12 28 40.28 -08 38 59.9 L C51
2023-12-31 05:11:34 S 12 29 04.39 -08 56 17.2 L C51
2023-12-31 10:12:16 C 12 29 46.648 -09 24 54.22 V 703
2023-12-31 10:15:42 C 12 29 47.022 -09 25 13.04 V 703
2023-12-31 10:19:07 C 12 29 47.476 -09 25 32.09 V 703
2023-12-31 10:22:32 C 12 29 47.882 -09 25 53.40 V 703
2024-01-01 12:04:30 C 12 33 13.805 -11 51 08.46 V T08
2024-01-01 12:53:51 C 12 33 20.160 -11 55 51.71 V T08
2024-01-01 13:14:22 C 12 33 22.754 -11 57 49.39 V T08
2024-01-04 07:23:35 C 12 42 44.184 -18 22 09.12 V W68
2024-01-04 07:28:16 C 12 42 44.844 -18 22 36.77 V W68
2024-01-04 07:36:14 C 12 42 45.948 -18 23 24.65 V W68
2024-01-04 07:59:39 C 12 42 49.212 -18 25 42.92 V W68
2024-01-05 07:25:18 C 12 46 21.314 -20 44 19.93 V W68
2024-01-05 07:29:54 C 12 46 21.994 -20 44 47.83 V W68
2024-01-05 07:50:16 C 12 46 24.950 -20 46 49.12 V W68
2024-01-05 08:02:14 C 12 46 26.686 -20 48 00.76 V W68
2024-01-12 08:04:50 C 13 16 08.100 -37 08 31.78 V W68
2024-01-12 08:15:42 C 13 16 10.205 -37 09 32.98 V W68
2024-01-12 08:31:29 C 13 16 13.265 -37 11 01.64 V W68
2024-01-12 08:41:44 C 13 16 15.240 -37 11 59.42 V W68
2024-01-13 04:55:32 C 13 20 30.118 -39 03 14.51 V W68
2024-01-13 05:39:02 C 13 20 39.262 -39 07 16.03 V W68
2024-01-13 06:06:35 C 13 20 45.005 -39 09 49.21 V W68
2024-01-13 06:10:38 C 13 20 45.821 -39 10 11.50 V W68
2024-01-19 06:46:32 C 13 56 38.734 -51 08 19.43 V W68
2024-01-19 06:49:50 C 13 56 39.674 -51 08 34.62 V W68
2024-01-19 07:26:08 C 13 56 49.802 -51 11 18.28 V W68
2024-01-19 08:06:59 C 13 57 01.126 -51 14 21.73 V W68
2024-01-31 08:17:31 C 15 50 55.975 -66 14 19.93 V W68
2024-01-31 08:23:07 C 15 50 58.874 -66 14 30.59 V W68
2024-01-31 08:32:47 C 15 51 03.641 -66 14 48.44 V W68
2024-01-31 08:58:46 C 15 51 16.476 -66 15 37.94 V W68
2024-09-18 13:55:48 C 07 36 27.239 +45 05 32.77 X F52
2024-09-18 14:11:13 C 07 36 29.843 +45 05 25.19 X F52
2024-09-18 14:26:36 C 07 36 32.430 +45 05 17.43 X F52
Radar Observations (10)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2008-01-09 02:12:00 29272278.9 4 us 2380 -1 -1
2008-01-09.091667 2927227890 4000 us 2380 251 251
2008-01-10 01:04:00 19847.14 0.05 Hz 2380 -1 -1
2008-01-10 01:08:00 27936813.1 1 us 2380 -1 -1
2008-01-10.044444 1984714 5 Hz 2380 251 251
2008-01-10.047222 2793681310 1000 us 2380 251 251
2008-01-11 00:52:00 -25527.29 0.05 Hz 2380 -1 -1
2008-01-11 00:58:00 28122839.5 4 us 2380 -1 -1
2008-01-11.036111 -2552729 5 Hz 2380 251 251
2008-01-11.040278 2812283950 4000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)