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
2016-02-11 18:24:31 C 05 29 03.83 -03 46 17.8 q K73
2016-02-11 19:07:13 C 05 29 14.66 -03 45 50.6 q K73
2016-02-11 20:09:29 C 05 29 30.41 -03 45 10.7 q K73
2016-02-11 20:59:21 C 05 29 43.02 -03 44 38.9 q K73
2016-02-12 19:01:55 C 05 35 20.13 -03 30 52.0 13.7 q K46
2016-02-12 19:16:54 C 05 35 23.75 -03 30 42.6 13.8 q K46
2016-02-12 19:21:55 C 05 35 24.96 -03 30 39.5 13.7 q K46
2016-02-15 20:05:58 C 05 52 16.04 -02 47 25.0 o Z80
2016-02-15 20:06:19 C 05 52 16.08 -02 47 24.9 o Z80
2016-02-15 20:06:42 C 05 52 16.20 -02 47 24.4 o Z80
2016-02-15 20:07:47 C 05 52 16.39 -02 47 23.3 o Z80
2016-02-15 20:08:08 C 05 52 16.50 -02 47 23.5 o Z80
2016-02-15 20:08:52 C 05 52 16.63 -02 47 22.5 o Z80
2016-02-15 20:09:15 C 05 52 16.71 -02 47 22.7 o Z80
2016-02-15 20:10:20 C 05 52 16.90 -02 47 22.1 o Z80
2016-02-15 20:10:43 C 05 52 17.02 -02 47 22.2 o Z80
2016-02-15 20:11:49 C 05 52 17.25 -02 47 21.2 o Z80
2016-02-15 20:12:09 C 05 52 17.33 -02 47 20.8 o Z80
2016-02-15 20:12:32 C 05 52 17.40 -02 47 20.9 o Z80
2016-02-15 20:19:51 C 05 52 18.91 -02 47 17.2 o Z80
2016-02-15 20:20:12 C 05 52 19.02 -02 47 16.7 o Z80
2016-02-15 20:20:35 C 05 52 19.10 -02 47 16.5 o Z80
2016-02-15 20:21:18 C 05 52 19.21 -02 47 15.8 o Z80
2016-02-15 20:21:40 C 05 52 19.32 -02 47 15.3 o Z80
2016-02-15 20:22:01 C 05 52 19.39 -02 47 16.1 o Z80
2016-02-15 20:22:45 C 05 52 19.54 -02 47 14.8 o Z80
2016-02-15 20:23:08 C 05 52 19.63 -02 47 15.4 o Z80
2016-02-15 20:23:29 C 05 52 19.70 -02 47 15.1 o Z80
2016-02-15 20:25:18 C 05 52 20.08 -02 47 13.9 o Z80
2016-02-15 20:25:41 C 05 52 20.14 -02 47 13.7 o Z80
2016-02-15 20:26:02 C 05 52 20.26 -02 47 13.8 o Z80
2016-02-15 20:26:46 C 05 52 20.39 -02 47 12.5 o Z80
2016-02-15 20:29:21 C 05 52 20.95 -02 47 11.7 o Z80
2016-02-15 20:30:03 C 05 52 21.11 -02 47 11.0 o Z80
2016-02-15 20:30:26 C 05 52 21.19 -02 47 10.3 o Z80
2016-02-15 20:31:31 C 05 52 21.39 -02 47 09.9 o Z80
2016-02-18 17:16:31 C 06 06 19.95 -02 09 36.8 q 168
2016-02-18 17:19:31 C 06 06 20.52 -02 09 35.3 q 168
2016-02-18 18:57:11 C 06 06 38.80 -02 08 44.2 q 168
2016-02-18 19:04:26 C 06 06 40.18 -02 08 40.2 q 168
2016-02-19 15:15:51 C 06 10 28.68 -01 58 14.3 q 168
2016-02-19 15:19:01 C 06 10 29.25 -01 58 12.7 q 168
2016-02-19 16:42:31 C 06 10 44.29 -01 57 30.1 q 168
2016-02-19 16:45:31 C 06 10 44.84 -01 57 28.6 q 168
2016-02-19 18:50:17 C 06 11 07.28 -01 56 25.0 q 168
2016-02-19 18:54:16 C 06 11 08.00 -01 56 22.9 q 168
2016-02-22 02:45:03 C 06 20 57.83 -01 28 50.2 u H21
2016-02-22 02:47:01 C 06 20 58.13 -01 28 49.4 u H21
2016-02-22 02:49:10 C 06 20 58.49 -01 28 48.2 u H21
2016-02-22 02:51:19 C 06 20 58.84 -01 28 47.1 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)