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
2016-03-18 01:39:15 C 07 35 18.07 +01 52 14.3 u H21
2016-03-18 01:41:46 C 07 35 18.31 +01 52 14.8 u H21
2016-03-18 21:27:37 C 07 37 14.61 +01 56 24.4 q 160
2016-03-18 21:29:17 C 07 37 14.77 +01 56 24.6 q 160
2016-03-18 21:30:59 C 07 37 14.92 +01 56 24.9 q 160
2016-03-19 20:33:08 C 07 39 29.82 +02 01 06.5 q 160
2016-03-19 20:35:25 C 07 39 30.03 +02 01 06.9 q 160
2016-03-19 20:37:41 C 07 39 30.25 +02 01 07.4 q 160
2016-03-22 00:48:53 C 07 44 31.11 +02 11 04.0 u H21
2016-03-22 00:51:24 C 07 44 31.35 +02 11 04.5 u H21
2016-03-22 00:53:55 C 07 44 31.57 +02 11 04.7 u H21
2016-03-22 00:56:26 C 07 44 31.80 +02 11 05.1 u H21
2016-03-22 00:58:57 C 07 44 32.03 +02 11 05.7 u H21
2016-03-22 01:01:28 C 07 44 32.27 +02 11 06.1 u H21
2016-03-22 01:03:59 C 07 44 32.49 +02 11 06.6 u H21
2016-03-22 01:06:30 C 07 44 32.73 +02 11 07.0 u H21
2016-03-22 01:09:02 C 07 44 32.96 +02 11 07.5 u H21
2016-03-22 01:11:33 C 07 44 33.20 +02 11 07.8 u H21
2016-03-22 01:14:04 C 07 44 33.42 +02 11 08.3 u H21
2016-03-22 01:16:35 C 07 44 33.65 +02 11 08.9 u H21
2016-03-22 01:19:06 C 07 44 33.89 +02 11 09.2 u H21
2016-03-22 01:21:37 C 07 44 34.11 +02 11 09.8 u H21
2016-03-22 01:24:08 C 07 44 34.35 +02 11 10.2 u H21
2016-03-22 01:26:39 C 07 44 34.58 +02 11 10.6 u H21
2016-03-22 01:29:10 C 07 44 34.79 +02 11 11.1 u H21
2016-03-22 01:31:41 C 07 44 35.04 +02 11 11.4 u H21
2016-03-22 01:34:11 C 07 44 35.27 +02 11 12.0 u H21
2016-03-22 01:36:27 C 07 44 35.48 +02 11 12.4 u H21
2016-03-22 01:38:12 C 07 44 35.63 +02 11 12.7 u H21
2016-03-22 02:41:47 C 07 44 41.35 +02 11 24.4 o W55
2016-03-22 03:13:02 C 07 44 44.23 +02 11 29.9 o W55
2016-03-22 03:48:00 C 07 44 47.47 +02 11 36.3 o W55
2016-03-22 12:07:11 C 07 45 34.96 +02 13 06.3 o 300
2016-03-22 12:55:06 C 07 45 39.33 +02 13 15.2 o 300
2016-03-22 12:56:25 C 07 45 39.51 +02 13 15.3 o 300
2016-03-22 12:57:43 C 07 45 39.57 +02 13 15.8 o 300
2016-03-22 12:59:03 C 07 45 39.72 +02 13 16.1 o 300
2016-03-22 13:01:39 C 07 45 39.99 +02 13 16.5 o 300
2016-03-22 13:02:58 C 07 45 40.08 +02 13 16.8 o 300
2016-03-25 07:46:36 C 07 51 53.94 +02 24 22.4 L T05
2016-03-25 08:16:54 C 07 51 56.64 +02 24 27.0 L T05
2016-03-25 08:47:15 C 07 51 59.37 +02 24 31.6 L T05
2016-03-25 09:17:27 C 07 52 02.07 +02 24 36.1 L T05
2016-03-25 18:22:31 C 07 52 52.86 +02 25 55.6 q K73
2016-03-25 19:08:37 C 07 52 57.01 +02 26 02.4 q K73
2016-03-25 19:19:31 C 07 52 57.98 +02 26 03.8 q K73
2016-03-25 19:23:14 C 07 52 58.30 +02 26 05.4 q K73
2016-03-25 19:31:16 C 07 52 59.05 +02 26 05.5 q K73
2016-03-26 04:49:26 C 07 53 49.94 +02 27 29.0 u H21
2016-03-26 04:51:30 C 07 53 50.12 +02 27 29.3 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)