1580 Betulia (1950 KA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4876047101 ± 2.00e+00
Semi-major axis (a)2.1949743206 AU ± 3.00e+00
Inclination (i)52.18777815° ± 4.00e+00
Long. of Asc. Node (Ω)62.22480892° ± 5.00e+00
Arg. of Perihelion (ω)159.71713922° ± 6.00e+00
Mean Anomaly (M)80.26713945° ± 3.89e-05
Mean Motion (n)0.3030875594°/day ± 6.21e-01
Perihelion dist (q)1.12469450 AU ± 4.65e+00
Aphelion dist (Q)3.26525414 AU ± 6.26e+00
Orbital Period3.25195229 yr ± 6.67e+00
NGA Modelr2
A21.40142724e-06 AU/d²
Physical Parameters
H (abs. magnitude)14.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.282″
Uncertainty0
Orbit TypeAmor
MOID0.133321 AU
Observations Used1981
Radar Obs Used10
Gaia Obs Used93
Oppositions46
Arc Total1950-2016
First Observation Used1950-05-22
Last Observation Used2025-12-13
Observations (2056)
Date Type RA Dec Mag Band Observatory
2016-12-18 03:33:38 C 02 33 30.57 -08 45 26.5 V G45
2016-12-18 03:52:21 C 02 33 29.86 -08 45 18.7 V G45
2016-12-18 04:38:22 C 02 33 28.43 -08 44 59.5 V G45
2017-01-12 05:31:09 C 02 22 06.961 -04 10 45.13 L F51
2017-01-12 05:49:24 C 02 22 06.835 -04 10 36.02 L F51
2017-01-12 06:07:36 C 02 22 06.727 -04 10 27.35 L F51
2017-01-12 06:25:48 C 02 22 06.585 -04 10 18.72 L F51
2017-11-01 13:25:05 C 06 19 06.48 +44 57 31.2 T08
2017-11-01 13:39:02 C 06 19 06.20 +44 57 42.3 T08
2017-11-01 13:53:01 C 06 19 05.97 +44 57 53.4 T08
2017-11-01 14:05:55 C 06 19 05.63 +44 58 03.9 T08
2017-11-03 12:24:23 C 06 18 04.756 +45 36 24.58 L F51
2017-11-03 12:42:53 C 06 18 04.285 +45 36 40.18 L F51
2017-11-03 13:19:55 C 06 18 03.324 +45 37 11.14 L F51
2017-11-09 13:15:21 C 06 13 33.79 +47 40 27.3 U T08
2017-11-09 13:28:52 C 06 13 33.33 +47 40 40.2 U T08
2017-11-09 13:44:33 C 06 13 32.60 +47 40 54.0 U T08
2017-11-09 13:59:33 C 06 13 31.95 +47 41 05.6 U T08
2017-11-10 13:46:32 C 06 12 34.880 +48 01 58.39 L F51
2017-11-10 14:06:05 C 06 12 34.034 +48 02 15.55 L F51
2017-11-10 14:25:38 C 06 12 33.183 +48 02 32.73 L F51
2017-11-11 09:08:44 C 06 11 45.72 +48 19 01.8 U G96
2017-11-11 09:16:10 C 06 11 45.37 +48 19 08.2 U G96
2017-11-11 09:23:36 C 06 11 45.04 +48 19 15.0 U G96
2017-11-11 09:31:01 C 06 11 44.70 +48 19 21.5 U G96
2017-11-13 13:09:48 C 06 09 20.22 +49 05 12.4 U T08
2017-11-13 13:16:26 C 06 09 19.87 +49 05 18.4 U T08
2017-11-13 13:29:09 C 06 09 19.21 +49 05 29.1 U T08
2017-11-13 13:41:54 C 06 09 18.53 +49 05 41.9 U T08
2017-11-17 08:45:26 C 06 04 16.44 +50 27 05.4 U 703
2017-11-17 09:01:09 C 06 04 15.42 +50 27 19.5 U 703
2017-11-17 09:09:06 C 06 04 15.00 +50 27 26.3 U 703
2017-11-17 12:26:38 C 06 04 02.81 +50 30 24.5 U T08
2017-11-17 12:46:48 C 06 04 01.54 +50 30 41.7 U T08
2017-11-17 12:58:48 C 06 04 00.70 +50 30 52.9 U T08
2017-11-17 13:11:35 C 06 03 59.88 +50 31 04.1 U T08
2017-11-21 08:07:24 C 05 57 50.86 +51 52 17.3 U 703
2017-11-21 08:23:42 C 05 57 49.48 +51 52 29.9 U 703
2017-11-21 08:31:54 C 05 57 48.86 +51 52 37.1 U 703
2017-12-07 11:05:13 C 05 18 43.40 +57 05 52.6 U T08
2017-12-07 11:08:31 C 05 18 43.03 +57 05 55.3 U T08
2017-12-07 11:30:52 C 05 18 40.04 +57 06 09.8 U T08
2017-12-07 11:31:32 C 05 18 39.94 +57 06 09.9 U T08
2017-12-07 11:38:48 C 05 18 39.06 +57 06 15.4 U T08
2017-12-07 18:34:27 C 05 17 45.70 +57 10 56.5 q D29
2017-12-07 18:53:33 C 05 17 43.24 +57 11 09.0 q D29
2017-12-07 19:12:38 C 05 17 40.74 +57 11 21.9 q D29
2017-12-11 10:37:50 C 05 06 01.14 +58 06 48.9 U T08
2017-12-11 11:01:58 C 05 05 57.78 +58 07 03.4 U T08
2017-12-11 11:07:16 C 05 05 57.04 +58 07 06.5 U T08
Radar Observations (22)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1976-05-18 05:56:50 225980 7 Hz 2380 -1 -1
1976-05-18.247801 22598000 100 Hz 2380 251 251
1976-05-19 05:52:16 186012.5 7 Hz 2380 -1 -1
1976-05-19.244630 18601250 100 Hz 2380 251 251
1989-05-23 12:00:00 501134 20 Hz 8495 -14 -14
1989-05-23.500000 50113400 2000 Hz 8495 253 253
1989-05-26 01:42:00 185537450 12 us 2380 -1 -1
1989-05-26.070833 18553745000 12000 us 2380 251 251
1989-05-28 01:38:00 185094484 12 us 2380 -1 -1
1989-05-28.068056 18509448400 12000 us 2380 251 251
1989-05-29 00:20:00 -72175 5 Hz 2380 -1 -1
1989-05-29.013889 -7217500 500 Hz 2380 251 251
2002-05-28.997222 23747341100 10000 us 2380 251 251
2002-05-30 01:10:00 237420023 2 us 2380 -1 -1
2002-05-30 01:10:00 -16023.93 1 Hz 2380 -1 -1
2002-05-30.048611 23742002300 2000 us 2380 251 251
2002-06-01 00:57:00 240888928 2 us 2380 -1 -1
2002-06-01 00:57:00 -80205.3478 1 Hz 2380 -1 -1
2002-06-01.039583 24088892800 2000 us 2380 251 251
2002-06-03 00:09:00 248731233 2 us 2380 -1 -1
2002-06-03 00:09:00 -138436.315 1 Hz 2380 -1 -1
2002-06-03.006250 24873123300 2000 us 2380 251 251
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)