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
2012-06-14 10:38:55 C 22 16 19.16 -05 14 29.1 r 703
2012-06-15 08:58:47 C 22 18 50.74 -04 43 06.5 c 704
2012-06-15 09:14:14 C 22 18 52.47 -04 42 44.6 c 704
2012-06-15 09:28:59 C 22 18 54.11 -04 42 23.8 c 704
2012-06-15 09:43:40 C 22 18 55.71 -04 42 02.8 c 704
2012-06-15 09:58:20 C 22 18 57.35 -04 41 42.1 c 704
2012-06-20 09:02:36 C 22 33 04.17 -01 39 42.3 r 703
2012-06-20 09:14:48 C 22 33 05.65 -01 39 22.2 r 703
2012-06-20 09:27:08 C 22 33 07.12 -01 39 01.9 r 703
2012-06-20 09:39:17 C 22 33 08.60 -01 38 42.1 r 703
2012-06-21 10:06:18 C 22 36 11.74 -00 58 02.3 14.4 r 718
2012-06-21 10:18:37 C 22 36 13.25 -00 57 41.6 14.4 r 718
2012-06-21 10:24:41 C 22 36 14.00 -00 57 31.4 14.4 r 718
2012-06-23 09:21:32 C 22 42 16.67 +00 24 06.4 14.7 r 718
2012-06-23 09:32:49 C 22 42 18.11 +00 24 26.6 14.8 r 718
2012-06-23 09:43:22 C 22 42 19.46 +00 24 45.4 14.9 r 718
2012-06-24 10:17:54 C 22 45 35.11 +01 09 24.6 14.5 r 718
2012-06-24 10:29:02 C 22 45 36.54 +01 09 45.0 14.5 r 718
2012-06-24 10:40:12 C 22 45 38.01 +01 10 05.6 14.6 r 718
2012-06-26 09:14:37 C 22 52 01.83 +02 38 31.8 15.1 r 718
2012-06-26 09:25:50 C 22 52 03.39 +02 38 53.1 15.2 r 718
2012-06-26 09:49:53 C 22 52 06.68 +02 39 40.2 15.4 r 718
2012-06-27 00:04:22 C 22 54 07.48 +03 07 42.7 u 585
2012-06-27 00:05:51 C 22 54 07.68 +03 07 46.0 u 585
2012-06-27 00:07:37 C 22 54 07.93 +03 07 49.3 u 585
2012-06-27 00:08:38 C 22 54 08.06 +03 07 51.5 u 585
2012-06-27 00:09:38 C 22 54 08.23 +03 07 53.7 u 585
2012-06-27 00:10:41 C 22 54 08.35 +03 07 55.6 u 585
2012-06-27 00:11:42 C 22 54 08.51 +03 07 57.9 u 585
2012-06-27 00:12:42 C 22 54 08.66 +03 07 59.8 u 585
2012-06-27 00:15:55 C 22 54 09.09 +03 08 06.0 u 585
2012-06-27 00:16:57 C 22 54 09.23 +03 08 08.2 u 585
2012-06-27 00:18:04 C 22 54 09.39 +03 08 10.2 u 585
2012-06-27 00:19:05 C 22 54 09.51 +03 08 11.7 u 585
2012-06-27 00:20:07 C 22 54 09.67 +03 08 14.6 u 585
2012-06-27 00:21:50 C 22 54 09.93 +03 08 17.8 u 585
2012-06-27 00:22:52 C 22 54 10.06 +03 08 19.7 u 585
2012-06-27 00:23:53 C 22 54 10.22 +03 08 21.9 u 585
2012-06-27 08:28:40 C 22 55 19.90 +03 24 33.4 14.2 r 718
2012-06-27 08:37:32 C 22 55 21.16 +03 24 51.2 14.2 r 718
2012-06-27 08:48:08 C 22 55 22.63 +03 25 12.2 14.2 r 718
2012-06-28 10:08:46 C 22 59 03.80 +04 16 58.6 14.3 r 718
2012-06-28 10:19:05 C 22 59 05.29 +04 17 20.0 14.3 r 718
2012-06-28 10:29:24 C 22 59 06.78 +04 17 41.0 14.3 r 718
2012-06-29 10:15:29 C 23 02 40.05 +05 07 43.7 14.8 r 718
2012-06-29 10:25:49 C 23 02 41.56 +05 08 05.8 14.7 r 718
2012-06-29 10:36:08 C 23 02 43.08 +05 08 27.9 14.6 r 718
2012-06-30 09:26:00 C 23 06 13.56 +05 57 56.2 14.7 r 718
2012-06-30 09:36:19 C 23 06 15.11 +05 58 18.8 14.8 r 718
2012-06-30 09:46:37 C 23 06 16.68 +05 58 41.4 14.9 r 718
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)