1685 Toro (1948 OA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4360488078 ± 2.00e+00
Semi-major axis (a)1.3678386612 AU ± 3.00e+00
Inclination (i)9.38187768° ± 4.00e+00
Long. of Asc. Node (Ω)274.20776988° ± 5.00e+00
Arg. of Perihelion (ω)127.27529930° ± 6.00e+00
Mean Anomaly (M)82.68165968° ± 4.14e-05
Mean Motion (n)0.6161124207°/day ± 2.03e+00
Perihelion dist (q)0.77139424 AU ± 3.22e+00
Aphelion dist (Q)1.96428308 AU ± 5.10e+00
Orbital Period1.59975071 yr ± 5.26e+00
NGA Modelr2
A2-1.51758492e-06 AU/d²
Physical Parameters
H (abs. magnitude)14.27
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.224″
Uncertainty0
Orbit TypeApollo
MOID0.051090 AU
Observations Used5208
Radar Obs Used7
Gaia Obs Used139
Oppositions26
Arc Total1948-2017
First Observation Used1948-07-17
Last Observation Used2026-04-01
Observations (6030)
Date Type RA Dec Mag Band Observatory
2024-02-15 02:40:19 C 06 07 43.162 -04 41 19.28 V W68
2024-02-15 18:22:31 B 06 10 46.762 -04 30 59.76 X K74
2024-02-15 18:25:04 B 06 10 47.215 -04 30 57.96 X K74
2024-02-15 18:27:37 B 06 10 47.705 -04 30 56.23 X K74
2024-02-15 19:16:45 B 06 10 56.782 -04 30 22.18 X K74
2024-02-16 09:20:02 C 06 13 33.876 -04 20 31.16 V T05
2024-02-16 09:25:00 C 06 13 34.757 -04 20 27.78 V T05
2024-02-16 09:33:31 C 06 13 36.278 -04 20 21.98 V T05
2024-02-16 19:46:38 C 06 15 29.854 -04 13 01.27 V M22
2024-02-16 19:51:52 C 06 15 30.768 -04 12 57.78 V M22
2024-02-16 19:59:44 C 06 15 32.136 -04 12 52.49 V M22
2024-02-16 20:16:51 C 06 15 35.126 -04 12 41.00 V M22
2024-02-17 01:10:46 B 06 16 28.58 -04 09 40.1 q X33
2024-02-17 01:12:49 B 06 16 28.88 -04 09 38.9 q X33
2024-02-17 01:14:51 B 06 16 29.22 -04 09 38.0 q X33
2024-02-18 16:40:29 C 06 23 22.06 -03 44 32.8 V M31
2024-02-18 16:46:57 C 06 23 23.12 -03 44 28.8 V M31
2024-02-18 16:51:14 C 06 23 23.83 -03 44 26.0 V M31
2024-02-18 18:19:09 C 06 23 38.46 -03 43 28.0 X G02
2024-02-18 18:23:50 C 06 23 39.22 -03 43 24.8 X G02
2024-02-18 18:28:32 C 06 23 39.99 -03 43 21.9 X G02
2024-02-19 19:19:24 B 06 27 45.036 -03 27 57.74 V 160
2024-02-19 19:23:08 B 06 27 45.622 -03 27 55.33 V 160
2024-02-19 19:26:50 B 06 27 46.200 -03 27 53.17 V 160
2024-02-20 01:50:14 B 06 28 46.87 -03 23 40.5 q X33
2024-02-20 01:52:17 B 06 28 47.16 -03 23 39.2 q X33
2024-02-20 01:54:19 B 06 28 47.51 -03 23 37.5 q X33
2024-02-20 07:50:12 C 06 29 44.270 -03 20 15.40 V T05
2024-02-20 07:54:16 C 06 29 44.885 -03 20 12.95 V T05
2024-02-20 08:02:21 C 06 29 46.099 -03 20 08.09 V T05
2024-02-20 08:22:01 C 06 29 49.063 -03 19 56.32 V T05
2024-02-20 20:06:10 C 06 31 39.475 -03 12 33.91 V M22
2024-02-20 20:10:46 C 06 31 40.159 -03 12 31.21 V M22
2024-02-20 20:25:28 C 06 31 42.341 -03 12 22.54 V M22
2024-02-20 20:34:44 C 06 31 43.716 -03 12 17.06 V M22
2024-02-21 23:55:30 C 06 35 53.62 -02 56 28.3 834
2024-02-22 00:47:32 C 06 36 01.02 -02 55 58.8 834
2024-02-23 04:33:43 C 06 40 02.683 -02 40 32.59 V W68
2024-02-23 04:53:16 C 06 40 05.395 -02 40 21.83 V W68
2024-02-23 04:59:12 C 06 40 06.216 -02 40 18.59 V W68
2024-02-23 05:11:40 C 06 40 07.968 -02 40 11.64 V W68
2024-02-23 19:29:15 B 06 42 10.594 -02 32 59.82 X K74
2024-02-23 19:32:18 B 06 42 10.999 -02 32 58.20 X K74
2024-02-23 19:34:51 B 06 42 11.342 -02 32 56.83 X K74
2024-02-23 19:37:23 B 06 42 11.698 -02 32 55.36 X K74
2024-02-23 19:39:56 B 06 42 12.026 -02 32 54.17 X K74
2024-02-25 03:26:03 C 06 46 33.715 -02 16 08.33 V U52
2024-02-25 03:30:14 C 06 46 34.258 -02 16 06.20 V U52
2024-02-25 03:34:24 C 06 46 34.800 -02 16 04.01 V U52
2024-02-25 18:32:42 C 06 48 34.10 -02 08 26.5 X K83
Radar Observations (16)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1980-07-22 07:00:00 161393.5 3.7 Hz 2380 -1 -1
1980-07-22.291667 16139350 20 Hz 2380 251 251
1988-07-21 07:30:00 151627.5 3 Hz 2380 -1 -1
1988-07-21.312500 15162750 300 Hz 2380 251 251
1988-07-22 07:34:00 218310206 20 us 2380 -1 -1
1988-07-22.315278 21831020600 20000 us 2380 251 251
1988-07-23 07:20:00 213324675 20 us 2380 -1 -1
1988-07-23.305556 21332467500 20000 us 2380 251 251
1988-07-24 07:35:00 208567250 20 us 2380 -1 -1
1988-07-24.315972 20856725000 20000 us 2380 251 251
1988-07-25 07:42:00 204181567 20 us 2380 -1 -1
1988-07-25.320833 20418156700 20000 us 2380 251 251
2012-07-22 08:55:00 309089493.95 8 us 2380 -1 -1
2012-07-22.371528 30908949395 8000 us 2380 251 251
2016-01-19 04:00:00 158933637 10 us 8660 -14 -14
2016-01-22 01:20:00 156224108 5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)