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
2024-04-16 07:44:09 C 08 41 47.268 +02 32 23.68 V T05
2024-04-16 20:43:34 C 08 42 49.678 +02 32 29.47 Z C23
2024-04-16 20:47:53 C 08 42 50.026 +02 32 29.54 Z C23
2024-04-16 20:52:11 C 08 42 50.335 +02 32 29.80 Z C23
2024-04-16 21:21:39 C 08 42 52.459 +02 32 41.78 V M22
2024-04-16 21:26:13 C 08 42 52.810 +02 32 42.07 V M22
2024-04-16 21:34:03 C 08 42 53.407 +02 32 42.32 V M22
2024-04-16 21:56:05 C 08 42 55.174 +02 32 42.22 V M22
2024-04-17 21:52:43 C 08 44 49.934 +02 32 40.31 Z C23
2024-04-17 21:57:02 C 08 44 50.280 +02 32 39.55 Z C23
2024-04-17 22:01:19 C 08 44 50.638 +02 32 40.31 Z C23
2024-04-18 19:03:10 B 08 46 31.057 +02 32 43.40 V L92
2024-04-18 19:07:14 B 08 46 31.526 +02 32 41.61 V L92
2024-04-18 19:12:20 B 08 46 31.941 +02 32 41.30 V L92
2024-04-20 07:48:37 C 08 49 26.172 +02 32 27.31 V T05
2024-04-20 07:53:50 C 08 49 26.580 +02 32 27.35 V T05
2024-04-20 08:00:30 C 08 49 27.089 +02 32 27.06 V T05
2024-04-20 08:02:50 C 08 49 27.276 +02 32 26.88 V T05
2024-04-20 08:13:43 C 08 49 28.114 +02 32 26.99 V T05
2024-04-20 08:16:59 C 08 49 28.380 +02 32 26.74 V T05
2024-04-20 09:00:16 C 08 49 31.742 +02 32 26.70 V T05
2024-04-20 18:03:32 C 08 50 15.199 +02 32 26.16 V M22
2024-04-20 18:08:09 C 08 50 15.564 +02 32 26.34 V M22
2024-04-20 18:16:03 C 08 50 16.135 +02 32 25.87 V M22
2024-04-20 18:31:13 C 08 50 17.330 +02 32 25.80 V M22
2024-04-20 18:31:52 C 08 50 17.376 +02 32 25.69 V M22
2024-04-20 18:36:28 C 08 50 17.722 +02 32 25.40 V M22
2024-04-20 19:13:44 C 08 50 20.630 +02 32 25.08 V M22
2024-04-20 19:24:58 C 08 50 21.480 +02 32 24.68 V M22
2024-04-21 05:59:24 C 08 51 11.610 +02 32 04.20 V 703
2024-04-21 06:02:43 C 08 51 11.844 +02 32 03.98 V 703
2024-04-21 06:06:01 C 08 51 12.078 +02 32 04.02 V 703
2024-04-21 06:09:20 C 08 51 12.362 +02 32 04.56 V 703
2024-04-21 20:21:32 C 08 52 20.138 +02 31 43.10 Z C23
2024-04-21 20:25:50 C 08 52 20.450 +02 31 44.15 Z C23
2024-04-21 20:32:16 C 08 52 20.938 +02 31 43.28 Z C23
2024-04-22 21:55:07 C 08 54 21.247 +02 31 03.29 Z C23
2024-04-22 21:59:25 C 08 54 21.564 +02 31 03.00 Z C23
2024-04-22 22:03:44 C 08 54 21.866 +02 31 02.42 Z C23
2024-04-24 07:32:26 C 08 57 00.326 +02 29 56.94 V T05
2024-04-24 07:37:03 C 08 57 00.674 +02 29 56.76 V T05
2024-04-24 07:44:58 C 08 57 01.282 +02 29 56.51 V T05
2024-04-24 08:00:01 C 08 57 02.446 +02 29 55.86 V T05
2024-04-24 19:19:58 C 08 57 56.114 +02 29 35.52 V M22
2024-04-24 19:25:10 C 08 57 56.506 +02 29 35.16 V M22
2024-04-24 19:35:51 C 08 57 57.362 +02 29 34.91 V M22
2024-04-24 19:58:10 C 08 57 59.071 +02 29 33.61 V M22
2024-04-25 19:12:09 C 08 59 48.91 +02 28 20.2 X G02
2024-04-25 19:17:11 C 08 59 49.30 +02 28 19.9 X G02
2024-04-25 19:22:12 C 08 59 49.70 +02 28 19.7 X G02
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)