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
2024-03-06 17:23:38 C 07 16 27.02 -00 23 48.1 q 168
2024-03-06 17:39:40 C 07 16 28.65 -00 23 42.3 q 168
2024-03-06 18:25:31 C 07 16 34.018 -00 23 23.86 Z C23
2024-03-06 18:27:33 C 07 16 34.217 -00 23 23.21 Z C23
2024-03-06 18:32:31 C 07 16 34.742 -00 23 21.30 Z C23
2024-03-07 18:40:39 B 07 19 05.302 -00 14 23.64 V 160
2024-03-07 18:45:48 B 07 19 05.813 -00 14 21.84 V 160
2024-03-07 18:50:40 B 07 19 06.326 -00 14 19.90 V 160
2024-03-07 21:35:10 C 07 19 22.817 -00 13 21.86 Z C23
2024-03-07 21:40:13 C 07 19 23.297 -00 13 19.67 Z C23
2024-03-07 21:41:56 C 07 19 23.458 -00 13 19.45 Z C23
2024-03-08 18:23:30 C 07 21 31.121 -00 05 54.49 Z C23
2024-03-08 18:25:13 C 07 21 31.291 -00 05 53.66 Z C23
2024-03-08 20:07:40 C 07 21 41.333 -00 05 17.77 Z C23
2024-03-09 18:11:28 C 07 23 54.796 +00 02 23.52 V 089
2024-03-09 18:16:12 C 07 23 55.227 +00 02 24.75 V 089
2024-03-10 02:23:09 C 07 24 43.565 +00 05 32.57 V W68
2024-03-10 02:27:42 C 07 24 44.004 +00 05 34.19 V W68
2024-03-10 02:35:30 C 07 24 44.748 +00 05 36.74 V W68
2024-03-10 03:09:33 C 07 24 48.002 +00 05 48.19 V W68
2024-03-11 16:10:01 C 07 28 27.46 +00 17 37.3 q 168
2024-03-11 16:37:52 C 07 28 30.10 +00 17 46.1 q 168
2024-03-11 17:13:59 C 07 28 33.54 +00 17 57.7 q 168
2024-03-11 19:06:15 B 07 28 44.73 +00 18 36.1 V 130
2024-03-11 19:07:56 B 07 28 44.88 +00 18 36.7 V 130
2024-03-11 19:09:58 B 07 28 45.07 +00 18 37.3 V 130
2024-03-11 19:46:38 C 07 28 48.326 +00 19 10.34 V M22
2024-03-11 19:51:14 C 07 28 48.756 +00 19 11.86 V M22
2024-03-11 19:59:12 C 07 28 49.502 +00 19 14.27 V M22
2024-03-11 20:13:49 C 07 28 50.863 +00 19 19.02 V M22
2024-03-12 15:45:31 C 07 30 44.80 +00 25 05.3 q 168
2024-03-12 16:25:37 C 07 30 48.57 +00 25 17.7 q 168
2024-03-12 17:15:36 C 07 30 53.26 +00 25 33.3 q 168
2024-03-12 17:49:40 C 07 30 56.45 +00 25 43.7 q 168
2024-03-12 19:01:56 B 07 31 03.720 +00 26 08.84 V 160
2024-03-12 19:06:00 B 07 31 04.118 +00 26 10.03 V 160
2024-03-12 19:09:51 B 07 31 04.493 +00 26 11.18 V 160
2024-03-14 01:59:20 C 07 34 00.792 +00 35 51.00 V W68
2024-03-14 02:03:54 C 07 34 01.210 +00 35 52.33 V W68
2024-03-14 02:13:45 C 07 34 02.105 +00 35 55.25 V W68
2024-03-14 18:22:01 B 07 35 34.097 +00 40 19.02 V 160
2024-03-14 18:26:22 B 07 35 34.505 +00 40 20.17 V 160
2024-03-14 18:30:34 B 07 35 34.882 +00 40 21.58 V 160
2024-03-14 20:13:47 C 07 35 44.19 +00 40 50.6 X G02
2024-03-14 20:17:41 C 07 35 44.52 +00 40 51.5 X G02
2024-03-15 00:08:39 B 07 36 06.52 +00 42 14.0 W X16
2024-03-15 01:11:45 B 07 36 12.17 +00 42 32.4 W X16
2024-03-15 19:31:18 B 07 37 55.195 +00 47 27.20 X C95
2024-03-15 19:36:39 C 07 37 55.435 +00 47 47.87 V M22
2024-03-15 19:37:04 B 07 37 55.709 +00 47 28.75 X 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)