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
2016-03-04 18:40:20 C 07 00 39.46 +00 24 16.9 q K73
2016-03-04 19:31:48 C 07 00 45.51 +00 24 34.6 q K73
2016-03-04 19:46:19 C 07 00 47.23 +00 24 39.2 q K73
2016-03-05 04:05:16 C 07 01 47.33 +00 27 29.1 q H45
2016-03-05 04:07:00 C 07 01 47.52 +00 27 29.7 q H45
2016-03-05 04:08:06 C 07 01 47.65 +00 27 30.1 q H45
2016-03-05 04:09:30 C 07 01 47.82 +00 27 30.6 q H45
2016-03-05 04:10:52 C 07 01 47.98 +00 27 31.1 q H45
2016-03-05 08:27:23 C 07 02 18.74 +00 29 01.3 L T05
2016-03-05 08:58:30 C 07 02 22.34 +00 29 11.7 L T05
2016-03-05 09:29:45 C 07 02 25.96 +00 29 22.0 L T05
2016-03-05 10:01:17 C 07 02 29.63 +00 29 32.5 L T05
2016-03-07 18:25:26 C 07 09 07.29 +00 47 35.1 q K73
2016-03-07 19:15:10 C 07 09 12.81 +00 47 50.1 q K73
2016-03-10 20:40:50 C 07 17 24.04 +01 09 27.0 t 510
2016-03-10 20:45:22 C 07 17 24.52 +01 09 28.4 t 510
2016-03-10 20:49:54 C 07 17 25.00 +01 09 29.6 t 510
2016-03-10 20:54:25 C 07 17 25.48 +01 09 30.9 t 510
2016-03-10 20:58:57 C 07 17 25.95 +01 09 32.1 t 510
2016-03-12 23:10:42 C 07 22 47.97 +01 23 08.3 q 006
2016-03-12 23:18:28 C 07 22 48.79 +01 23 10.2 q 006
2016-03-12 23:26:29 C 07 22 49.61 +01 23 12.6 q 006
2016-03-12 23:34:30 C 07 22 50.46 +01 23 14.8 q 006
2016-03-12 23:42:31 C 07 22 51.29 +01 23 16.7 q 006
2016-03-13 08:04:57 C 07 23 44.35 +01 25 31.9 L T05
2016-03-13 08:22:23 C 07 23 46.10 +01 25 36.3 L T05
2016-03-13 09:07:23 C 07 23 50.66 +01 25 48.0 L T05
2016-03-13 09:38:39 C 07 23 53.84 +01 25 55.9 L T05
2016-03-16 20:27:05 C 07 32 23.35 +01 45 46.5 q L36
2016-03-16 20:29:35 C 07 32 23.60 +01 45 47.0 q L36
2016-03-16 20:32:09 C 07 32 23.84 +01 45 47.5 q L36
2016-03-16 22:41:34 C 07 32 36.55 +01 46 16.9 q L36
2016-03-16 22:43:58 C 07 32 36.78 +01 46 17.2 q L36
2016-03-16 22:46:24 C 07 32 37.02 +01 46 17.8 q L36
2016-03-17 01:39:24 C 07 32 54.89 +01 46 58.8 u H21
2016-03-17 01:41:55 C 07 32 55.15 +01 46 59.1 u H21
2016-03-17 01:44:26 C 07 32 55.38 +01 46 59.7 u H21
2016-03-17 01:46:57 C 07 32 55.62 +01 47 00.3 u H21
2016-03-17 01:49:28 C 07 32 55.87 +01 47 00.9 u H21
2016-03-17 01:51:59 C 07 32 56.11 +01 47 01.5 u H21
2016-03-17 01:54:31 C 07 32 56.35 +01 47 02.1 u H21
2016-03-17 01:57:02 C 07 32 56.60 +01 47 02.6 u H21
2016-03-17 02:00:48 C 07 32 56.96 +01 47 03.5 u H21
2016-03-18 01:21:39 C 07 35 16.38 +01 52 10.5 u H21
2016-03-18 01:24:11 C 07 35 16.62 +01 52 11.1 u H21
2016-03-18 01:26:42 C 07 35 16.87 +01 52 11.6 u H21
2016-03-18 01:29:12 C 07 35 17.11 +01 52 12.1 u H21
2016-03-18 01:31:43 C 07 35 17.35 +01 52 12.6 u H21
2016-03-18 01:34:14 C 07 35 17.59 +01 52 13.2 u H21
2016-03-18 01:36:45 C 07 35 17.83 +01 52 13.8 u H21
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)