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
2024-05-08 20:43:53 C 09 24 16.831 +02 01 03.54 Z C23
2024-05-08 20:48:12 C 09 24 17.129 +02 01 02.82 Z C23
2024-05-08 20:52:30 C 09 24 17.453 +02 01 03.00 Z C23
2024-05-09 00:32:37 C 09 24 34.517 +02 00 44.42 V W68
2024-05-09 00:37:53 C 09 24 34.934 +02 00 43.63 V W68
2024-05-09 00:51:02 C 09 24 35.921 +02 00 42.05 V W68
2024-05-09 01:08:12 C 09 24 37.226 +02 00 39.89 V W68
2024-05-10 05:49:45 C 09 26 50.755 +01 56 52.87 V T05
2024-05-10 05:54:19 C 09 26 51.096 +01 56 52.15 V T05
2024-05-10 06:05:23 C 09 26 51.938 +01 56 50.75 V T05
2024-05-10 06:33:41 C 09 26 54.072 +01 56 46.82 V T05
2024-05-12 04:28:03 C 09 30 27.248 +01 50 28.75 V 703
2024-05-12 04:31:19 C 09 30 27.515 +01 50 28.43 V 703
2024-05-12 04:34:35 C 09 30 27.752 +01 50 27.96 V 703
2024-05-12 04:37:51 C 09 30 28.012 +01 50 27.42 V 703
2024-05-14 03:33:04 C 09 34 05.678 +01 43 33.46 V 703
2024-05-14 03:36:43 C 09 34 06.002 +01 43 32.95 V 703
2024-05-14 03:40:21 C 09 34 06.254 +01 43 32.70 V 703
2024-05-14 03:44:00 C 09 34 06.514 +01 43 31.33 V 703
2024-05-17 00:36:13 C 09 39 25.373 +01 32 40.67 V W68
2024-05-17 00:42:07 C 09 39 25.824 +01 32 39.70 V W68
2024-05-17 00:49:59 C 09 39 26.414 +01 32 38.04 V W68
2024-05-17 01:09:36 C 09 39 27.890 +01 32 35.16 V W68
2024-05-18 18:38:09 C 09 42 39.566 +01 25 30.29 V M22
2024-05-18 18:42:48 C 09 42 39.917 +01 25 29.64 V M22
2024-05-18 19:07:33 C 09 42 41.803 +01 25 25.39 V M22
2024-05-22 03:55:48 C 09 48 54.335 +01 10 32.23 V 703
2024-05-22 03:59:06 C 09 48 54.576 +01 10 32.09 V 703
2024-05-22 04:02:23 C 09 48 54.832 +01 10 31.66 V 703
2024-05-22 04:05:40 C 09 48 55.069 +01 10 30.72 V 703
2024-05-22 07:36:56 C 09 49 11.237 +01 09 51.52 V T05
2024-05-22 07:41:30 C 09 49 11.602 +01 09 50.58 V T05
2024-05-22 07:50:02 C 09 49 12.233 +01 09 49.07 V T05
2024-05-22 08:09:38 C 09 49 13.718 +01 09 45.58 V T05
2024-05-24 07:00:48 C 09 52 49.318 +01 00 36.22 V T08
2024-05-24 07:05:37 C 09 52 49.670 +01 00 35.35 V T08
2024-05-24 07:15:08 C 09 52 50.395 +01 00 32.98 V T08
2024-05-24 07:33:33 C 09 52 51.787 +01 00 29.52 V T08
2024-05-26 04:23:05 C 09 56 17.700 +00 51 20.02 V 703
2024-05-26 04:26:22 C 09 56 17.948 +00 51 19.04 V 703
2024-05-26 04:31:44 C 09 56 18.362 +00 51 18.04 V 703
2024-05-26 04:35:01 C 09 56 18.611 +00 51 17.64 V 703
2024-05-26 06:52:50 C 09 56 29.182 +00 50 49.85 V T05
2024-05-26 07:12:41 C 09 56 30.672 +00 50 45.82 V T05
2024-05-26 07:18:34 C 09 56 31.116 +00 50 44.56 V T05
2024-05-26 07:27:02 C 09 56 31.742 +00 50 43.01 V T05
2024-05-26 18:19:54 C 09 57 21.804 +00 48 31.43 V M22
2024-05-26 18:34:13 C 09 57 22.865 +00 48 28.22 V M22
2024-05-26 18:55:15 C 09 57 24.454 +00 48 24.05 V M22
2024-05-29 00:11:45 C 10 01 28.769 +00 36 56.74 V W68
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)