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
2024-03-20 22:38:20 B 07 49 06.060 +01 18 34.20 Z C95
2024-03-20 22:58:39 B 07 49 07.829 +01 18 38.99 Z C95
2024-03-21 07:45:28 C 07 49 54.797 +01 20 43.19 V T08
2024-03-21 08:19:48 C 07 49 57.718 +01 20 50.93 V T08
2024-03-21 08:46:38 C 07 50 00.010 +01 20 56.94 V T08
2024-03-21 08:55:56 C 07 50 00.804 +01 20 58.96 V T08
2024-03-22 19:19:00 B 07 53 03.259 +01 28 22.04 Z C95
2024-03-22 19:29:02 B 07 53 04.106 +01 28 24.06 Z C95
2024-03-22 19:36:08 B 07 53 04.711 +01 28 25.61 Z C95
2024-03-22 19:53:11 B 07 53 06.158 +01 28 29.14 Z C95
2024-03-22 19:59:18 B 07 53 06.674 +01 28 30.43 Z C95
2024-03-22 20:10:27 B 07 53 07.620 +01 28 32.84 Z C95
2024-03-22 20:28:00 B 07 53 09.108 +01 28 36.48 Z C95
2024-03-22 20:29:34 B 07 53 09.240 +01 28 36.84 Z C95
2024-03-22 20:45:37 B 07 53 10.606 +01 28 40.15 Z C95
2024-03-22 21:05:06 B 07 53 12.264 +01 28 44.08 Z C95
2024-03-22 21:35:22 B 07 53 14.832 +01 28 50.56 Z C95
2024-03-22 22:05:38 B 07 53 17.424 +01 28 56.86 Z C95
2024-03-22 22:41:05 B 07 53 20.443 +01 29 04.31 Z C95
2024-03-22 23:03:16 B 07 53 22.354 +01 29 08.92 Z C95
2024-03-22 23:25:28 B 07 53 24.259 +01 29 13.56 Z C95
2024-03-23 08:40:22 C 07 54 12.847 +01 31 13.08 V T05
2024-03-23 08:49:17 C 07 54 13.620 +01 31 15.20 V T05
2024-03-23 08:54:30 C 07 54 14.042 +01 31 16.28 V T05
2024-03-23 09:09:22 C 07 54 15.295 +01 31 19.24 V T05
2024-03-23 11:50:50 C 07 54 30.070 +01 32 02.26 V P07
2024-03-23 13:07:03 C 07 54 36.454 +01 32 17.84 V P07
2024-03-23 14:09:08 C 07 54 41.647 +01 32 30.66 V P07
2024-03-23 14:47:46 C 07 54 44.890 +01 32 37.64 V P07
2024-03-23 19:08:21 B 07 55 08.189 +01 33 16.34 Z C95
2024-03-23 19:24:44 B 07 55 09.562 +01 33 19.80 X C95
2024-03-23 19:28:32 B 07 55 09.888 +01 33 20.48 Z C95
2024-03-23 19:29:11 B 07 55 09.910 +01 33 20.99 X C95
2024-03-23 19:33:34 B 07 55 10.320 +01 33 21.60 X C95
2024-03-23 19:48:44 B 07 55 11.585 +01 33 24.59 Z C95
2024-03-23 19:57:38 B 07 55 12.163 +01 33 41.22 Z M49
2024-03-23 20:07:53 B 07 55 13.018 +01 33 43.24 Z M49
2024-03-23 20:16:04 B 07 55 13.886 +01 33 30.24 Z C95
2024-03-23 20:18:06 B 07 55 13.877 +01 33 45.25 Z M49
2024-03-23 20:36:16 B 07 55 15.588 +01 33 34.27 Z C95
2024-03-23 20:56:26 B 07 55 17.292 +01 33 38.27 Z C95
2024-03-23 21:13:43 B 07 55 18.526 +01 33 56.27 Z M49
2024-03-23 21:23:57 B 07 55 19.397 +01 33 58.54 Z M49
2024-03-23 21:34:11 B 07 55 20.256 +01 34 00.34 Z M49
2024-03-23 21:51:36 B 07 55 21.722 +01 34 04.04 Z M49
2024-03-23 22:01:51 B 07 55 22.596 +01 34 05.95 Z M49
2024-03-23 22:12:06 B 07 55 23.467 +01 34 08.00 Z M49
2024-03-24 19:21:54 B 07 57 14.304 +01 38 02.80 Z C95
2024-03-24 20:08:36 B 07 57 18.209 +01 38 11.80 Z C95
2024-03-24 21:10:28 C 07 57 23.465 +01 38 22.45 Z C23
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)