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
2023-01-11 19:38:36 C 01 31 13.62 +25 27 54.2 M32
2023-01-11 19:38:55 C 01 31 13.68 +25 27 53.0 M32
2023-01-11 19:39:16 C 01 31 13.71 +25 27 51.7 M32
2023-01-11 19:39:36 C 01 31 13.77 +25 27 49.1 M32
2023-01-11 19:39:56 C 01 31 13.80 +25 27 47.7 M32
2023-01-11 19:40:16 C 01 31 13.84 +25 27 45.7 M32
2023-01-14 04:30:35 C 01 39 36.349 +20 45 19.15 V 703
2023-01-14 04:38:49 C 01 39 37.462 +20 44 38.51 V 703
2023-01-14 04:47:02 C 01 39 38.581 +20 43 57.90 V 703
2023-01-14 04:55:16 C 01 39 39.661 +20 43 17.11 V 703
2023-01-15 00:04:33 B 01 42 23.67 +19 09 39.4 V H89
2023-01-15 01:39:09 B 01 42 35.91 +19 01 58.0 V H89
2023-01-15 03:20:30 B 01 42 49.28 +18 53 42.1 V H89
2023-01-18 17:42:19 C 01 54 18.88 +12 08 01.4 V G33
2023-01-18 17:45:36 C 01 54 19.27 +12 07 46.4 V G33
2023-01-18 17:49:03 C 01 54 19.67 +12 07 30.8 V G33
2023-01-19 00:50:30 C 01 55 11.446 +11 36 49.72 V W68
2023-01-19 00:55:03 C 01 55 11.962 +11 36 29.59 V W68
2023-01-19 01:04:08 C 01 55 12.986 +11 35 48.08 V W68
2023-01-19 01:18:24 C 01 55 14.642 +11 34 43.79 V W68
2023-01-22 05:16:11 C 02 04 23.398 +06 04 35.54 V 703
2023-01-22 05:22:53 C 02 04 24.136 +06 04 07.54 V 703
2023-01-22 05:29:36 C 02 04 24.888 +06 03 39.49 V 703
2023-01-22 05:36:18 C 02 04 25.619 +06 03 11.16 V 703
2023-01-25 00:06:53 C 02 11 53.00 +01 36 42.6 V W46
2023-01-25 00:27:53 C 02 11 55.05 +01 35 21.7 V W46
2023-01-25 00:48:36 C 02 11 57.06 +01 34 02.2 V W46
2023-01-26 02:33:18 C 02 14 41.190 -00 03 29.63 V 703
2023-01-26 02:40:50 C 02 14 41.896 -00 03 57.49 V 703
2023-01-26 02:48:21 C 02 14 42.594 -00 04 25.68 V 703
2023-01-26 02:55:52 C 02 14 43.307 -00 04 53.58 V 703
2023-02-01 18:40:10 C 02 29 59.534 -09 03 44.60 V M22
2023-02-01 18:44:43 C 02 29 59.894 -09 03 58.14 V M22
2023-02-01 19:00:20 C 02 30 01.126 -09 04 45.66 V M22
2023-02-01 19:08:09 C 02 30 01.742 -09 05 09.02 V M22
2023-02-07 01:49:24 C 02 40 09.098 -15 01 56.42 V W68
2023-02-07 01:53:58 C 02 40 09.444 -15 02 08.45 V W68
2023-02-07 02:11:03 C 02 40 10.572 -15 02 52.33 V W68
2023-02-07 02:19:36 C 02 40 11.138 -15 03 13.46 V W68
2023-02-07 19:18:48 C 02 41 25.066 -15 46 57.22 V M22
2023-02-07 19:23:21 C 02 41 25.344 -15 47 08.63 V M22
2023-02-07 19:31:10 C 02 41 25.855 -15 47 28.18 V M22
2023-02-07 20:04:14 C 02 41 28.090 -15 48 51.77 V M22
2023-02-16 00:40:06 C 02 53 23.635 -23 15 59.15 V W68
2023-02-16 00:45:59 C 02 53 23.890 -23 16 10.70 V W68
2023-02-16 00:59:38 C 02 53 24.468 -23 16 38.24 V W68
2023-02-16 01:13:57 C 02 53 25.099 -23 17 06.90 V W68
2023-03-02 18:19:28 C 03 03 37.368 -33 21 16.74 V M22
2023-03-02 18:24:40 C 03 03 37.315 -33 21 23.76 V M22
2023-03-02 18:42:23 C 03 03 37.339 -33 21 48.38 V M22
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)