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
2024-04-27 01:00:41 C 09 02 09.386 +02 26 57.34 V W68
2024-04-27 01:05:15 C 09 02 09.710 +02 26 56.72 V W68
2024-04-27 01:19:48 C 09 02 10.834 +02 26 56.08 V W68
2024-04-27 01:29:37 C 09 02 11.611 +02 26 55.68 V W68
2024-04-28 04:39:46 C 09 04 19.412 +02 25 10.09 V 703
2024-04-28 04:43:03 C 09 04 19.672 +02 25 09.77 V 703
2024-04-28 04:46:20 C 09 04 19.974 +02 25 09.37 V 703
2024-04-28 04:49:36 C 09 04 20.219 +02 25 09.34 V 703
2024-04-28 07:23:21 C 09 04 32.242 +02 25 01.16 V T05
2024-04-28 07:27:54 C 09 04 32.592 +02 25 00.80 V T05
2024-04-28 07:41:57 C 09 04 33.672 +02 24 59.98 V T05
2024-04-28 07:56:58 C 09 04 34.819 +02 24 58.90 V T05
2024-04-28 20:33:55 C 09 05 34.106 +02 24 16.49 V M22
2024-04-28 20:38:34 C 09 05 34.457 +02 24 15.84 V M22
2024-04-28 20:47:07 C 09 05 35.131 +02 24 15.16 V M22
2024-04-28 21:01:36 C 09 05 36.240 +02 24 14.62 V M22
2024-04-29 19:02:28 C 09 07 19.86 +02 22 32.3 X G02
2024-04-29 19:09:28 C 09 07 20.38 +02 22 32.0 X G02
2024-04-29 19:16:10 C 09 07 20.91 +02 22 31.2 X G02
2024-04-30 04:41:17 C 09 08 04.974 +02 21 51.19 V 703
2024-04-30 04:44:34 C 09 08 05.215 +02 21 50.87 V 703
2024-04-30 04:47:51 C 09 08 05.482 +02 21 50.76 V 703
2024-04-30 04:51:08 C 09 08 05.716 +02 21 50.54 V 703
2024-05-02 04:41:25 C 09 11 49.880 +02 17 58.60 V 703
2024-05-02 04:44:40 C 09 11 50.129 +02 17 58.31 V 703
2024-05-02 04:47:55 C 09 11 50.374 +02 17 58.13 V 703
2024-05-02 04:51:11 C 09 11 50.629 +02 17 57.59 V 703
2024-05-02 06:58:17 C 09 12 00.588 +02 17 48.19 V T05
2024-05-02 07:02:50 C 09 12 00.948 +02 17 47.98 V T05
2024-05-02 07:15:38 C 09 12 01.925 +02 17 46.68 V T05
2024-05-02 07:32:24 C 09 12 03.211 +02 17 45.06 V T05
2024-05-03 20:55:50 C 09 14 58.178 +02 14 15.94 Z C23
2024-05-03 20:59:03 C 09 14 58.447 +02 14 15.58 Z C23
2024-05-03 21:01:12 C 09 14 58.570 +02 14 16.08 Z C23
2024-05-05 03:09:57 C 09 17 19.392 +02 11 16.91 V G96
2024-05-05 03:19:44 C 09 17 20.144 +02 11 15.86 V G96
2024-05-05 03:35:19 C 09 17 21.329 +02 11 14.28 V G96
2024-05-05 03:43:31 C 09 17 21.955 +02 11 13.45 V G96
2024-05-06 05:57:29 C 09 19 24.391 +02 08 27.10 V T05
2024-05-06 06:03:21 C 09 19 24.845 +02 08 26.70 V T05
2024-05-06 06:13:08 C 09 19 25.589 +02 08 25.44 V T05
2024-05-06 06:30:20 C 09 19 26.892 +02 08 23.53 V T05
2024-05-06 18:16:12 C 09 20 21.799 +02 07 11.32 V M22
2024-05-06 18:20:47 C 09 20 22.145 +02 07 10.92 V M22
2024-05-06 18:29:19 C 09 20 22.778 +02 07 10.16 V M22
2024-05-06 18:45:20 C 09 20 24.012 +02 07 08.22 V M22
2024-05-08 04:51:07 C 09 23 02.720 +02 03 01.87 V 703
2024-05-08 04:54:28 C 09 23 02.994 +02 03 01.62 V 703
2024-05-08 04:57:48 C 09 23 03.239 +02 03 01.08 V 703
2024-05-08 05:01:08 C 09 23 03.487 +02 03 00.58 V 703
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)