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
2016-04-01 01:26:17 C 08 06 28.26 +02 45 02.3 u H21
2016-04-01 01:28:48 C 08 06 28.48 +02 45 02.5 u H21
2016-04-01 01:31:49 C 08 06 28.74 +02 45 02.8 u H21
2016-04-01 03:32:06 C 08 06 39.08 +02 45 15.6 q H45
2016-04-01 03:33:36 C 08 06 39.21 +02 45 15.7 q H45
2016-04-01 03:35:00 C 08 06 39.33 +02 45 15.9 q H45
2016-04-01 12:00:40 C 08 07 24.05 +02 46 07.3 q D29
2016-04-01 12:01:57 C 08 07 24.23 +02 46 08.1 q D29
2016-04-01 12:26:04 C 08 07 26.24 +02 46 09.7 q D29
2016-04-01 12:27:20 C 08 07 26.35 +02 46 10.2 q D29
2016-04-01 12:51:28 C 08 07 28.39 +02 46 12.2 q D29
2016-04-01 12:52:44 C 08 07 28.50 +02 46 12.4 q D29
2016-04-02 07:56:00 C 08 09 08.70 +02 48 04.3 L T05
2016-04-02 08:28:51 C 08 09 11.50 +02 48 07.4 L T05
2016-04-02 09:01:31 C 08 09 14.28 +02 48 10.4 L T05
2016-04-02 09:34:15 C 08 09 17.08 +02 48 13.1 L T05
2016-04-05 01:17:50 C 08 14 50.21 +02 53 26.9 u H21
2016-04-05 01:23:06 C 08 14 50.64 +02 53 27.4 u H21
2016-04-05 01:27:36 C 08 14 51.03 +02 53 27.6 u H21
2016-04-05 01:33:52 C 08 14 51.55 +02 53 28.1 u H21
2016-04-05 01:36:22 C 08 14 51.78 +02 53 28.2 u H21
2016-04-05 01:38:53 C 08 14 51.98 +02 53 28.6 u H21
2016-04-05 01:42:38 C 08 14 52.30 +02 53 28.6 u H21
2016-04-06 20:36:46 C 08 18 33.70 +02 56 18.8 q 160
2016-04-06 20:39:06 C 08 18 33.90 +02 56 19.0 q 160
2016-04-06 20:41:24 C 08 18 34.09 +02 56 19.2 q 160
2016-04-08 01:14:21 C 08 21 00.91 +02 57 55.4 u H21
2016-04-08 01:16:51 C 08 21 01.12 +02 57 55.5 u H21
2016-04-08 01:19:21 C 08 21 01.33 +02 57 55.6 u H21
2016-04-08 01:21:51 C 08 21 01.54 +02 57 55.8 u H21
2016-04-08 01:24:21 C 08 21 01.74 +02 57 55.9 u H21
2016-04-08 01:28:21 C 08 21 02.07 +02 57 56.0 u H21
2016-04-09 01:10:31 C 08 23 03.27 +02 59 04.1 u H21
2016-04-09 01:13:02 C 08 23 03.48 +02 59 04.2 u H21
2016-04-09 01:15:33 C 08 23 03.70 +02 59 04.3 u H21
2016-04-09 01:18:04 C 08 23 03.90 +02 59 04.4 u H21
2016-04-09 01:20:35 C 08 23 04.12 +02 59 04.6 u H21
2016-04-09 01:23:06 C 08 23 04.32 +02 59 04.7 u H21
2016-04-09 01:25:37 C 08 23 04.53 +02 59 04.8 u H21
2016-04-09 01:28:08 C 08 23 04.74 +02 59 05.0 u H21
2016-04-09 01:30:39 C 08 23 04.95 +02 59 05.0 u H21
2016-04-09 01:33:31 C 08 23 05.18 +02 59 05.2 u H21
2016-04-10 01:12:55 C 08 25 05.72 +03 00 03.2 u H21
2016-04-10 01:17:07 C 08 25 06.06 +03 00 03.3 u H21
2016-04-10 01:21:18 C 08 25 06.41 +03 00 03.4 u H21
2016-04-10 01:25:04 C 08 25 06.72 +03 00 03.6 u H21
2016-04-10 01:29:15 C 08 25 07.06 +03 00 03.7 u H21
2016-04-10 18:32:18 C 08 26 33.64 +03 00 38.8 q K68
2016-04-10 20:17:10 C 08 26 42.27 +03 00 42.3 q K68
2016-04-12 01:12:06 C 08 29 08.85 +03 01 30.2 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)