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
2024-03-15 19:41:15 C 07 37 55.848 +00 47 49.16 V M22
2024-03-15 19:42:44 B 07 37 56.222 +00 47 30.37 X C95
2024-03-15 19:45:50 C 07 37 56.256 +00 47 50.50 V M22
2024-03-15 20:12:15 C 07 37 58.615 +00 47 57.80 V M22
2024-03-17 08:51:22 C 07 41 21.492 +00 57 38.38 V T08
2024-03-17 08:55:22 C 07 41 21.847 +00 57 39.42 V T08
2024-03-17 09:10:00 C 07 41 23.138 +00 57 43.27 V T08
2024-03-17 09:32:14 C 07 41 25.109 +00 57 49.10 V T08
2024-03-18 19:26:19 C 07 44 30.92 +01 06 21.7 X G02
2024-03-18 19:32:11 C 07 44 31.44 +01 06 23.2 X G02
2024-03-18 19:37:46 C 07 44 31.93 +01 06 24.4 X G02
2024-03-18 19:51:14 C 07 44 33.300 +01 06 28.01 Z C23
2024-03-18 19:54:41 C 07 44 33.576 +01 06 28.73 Z C23
2024-03-18 19:58:43 C 07 44 33.955 +01 06 29.81 Z C23
2024-03-19 07:42:25 C 07 45 37.198 +01 09 29.05 V T05
2024-03-19 07:46:28 C 07 45 37.553 +01 09 29.99 V T05
2024-03-19 07:54:00 C 07 45 38.203 +01 09 31.90 V T05
2024-03-19 16:13:03 C 07 46 23.41 +01 11 25.3 q 168
2024-03-19 16:39:52 C 07 46 25.77 +01 11 31.5 q 168
2024-03-19 17:15:59 C 07 46 28.93 +01 11 40.3 q 168
2024-03-19 17:36:52 C 07 46 30.75 +01 11 45.3 q 168
2024-03-19 19:26:11 C 07 46 40.594 +01 12 31.61 V M22
2024-03-19 19:30:44 C 07 46 40.990 +01 12 32.58 V M22
2024-03-19 19:57:52 C 07 46 43.334 +01 12 39.17 V M22
2024-03-19 20:10:27 C 07 46 44.422 +01 12 42.19 V M22
2024-03-20 04:02:53 C 07 47 27.031 +01 14 17.84 Z U76
2024-03-20 04:12:57 C 07 47 27.876 +01 14 20.33 Z U76
2024-03-20 04:24:31 C 07 47 28.874 +01 14 23.03 Z U76
2024-03-20 06:51:41 S 07 47 41.539 +01 14 56.35 X 275
2024-03-20 16:13:30 C 07 48 32.26 +01 17 04.0 q 168
2024-03-20 16:39:44 C 07 48 34.56 +01 17 10.0 q 168
2024-03-20 17:14:05 C 07 48 37.53 +01 17 17.9 q 168
2024-03-20 18:19:12 B 07 48 43.668 +01 17 35.12 V 160
2024-03-20 18:24:13 B 07 48 44.107 +01 17 36.02 V 160
2024-03-20 18:29:00 B 07 48 44.498 +01 17 37.32 V 160
2024-03-20 18:58:35 C 07 48 46.99 +01 17 43.2 X G02
2024-03-20 19:04:43 C 07 48 47.51 +01 17 44.6 X G02
2024-03-20 19:10:35 C 07 48 48.01 +01 17 46.0 X G02
2024-03-20 19:11:33 B 07 48 48.230 +01 17 47.18 Z C95
2024-03-20 19:17:16 B 07 48 48.713 +01 17 48.37 Z C95
2024-03-20 19:22:59 B 07 48 49.214 +01 17 49.67 Z C95
2024-03-20 19:54:53 B 07 48 51.958 +01 17 57.12 Z C95
2024-03-20 20:15:11 B 07 48 53.710 +01 18 01.73 Z C95
2024-03-20 20:35:26 B 07 48 55.445 +01 18 06.44 Z C95
2024-03-20 20:46:33 C 07 48 56.458 +01 18 07.78 Z C23
2024-03-20 20:48:52 C 07 48 56.650 +01 18 08.86 Z C23
2024-03-20 20:51:11 C 07 48 56.858 +01 18 08.46 Z C23
2024-03-20 21:24:20 B 07 48 59.664 +01 18 17.42 Z C95
2024-03-20 21:44:34 B 07 49 01.402 +01 18 22.10 Z C95
2024-03-20 22:18:04 B 07 49 04.298 +01 18 29.84 Z C95
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)