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
2000-12-01 10:12:44 C 03 17 22.72 +03 37 46.6 t 608
2001-10-13 11:47:27 C 08 37 58.45 +50 21 20.7 c 699
2001-10-13 11:55:19 C 08 37 59.33 +50 21 26.0 c 699
2001-10-13 12:03:10 C 08 38 00.25 +50 21 31.7 c 699
2001-10-13 12:11:04 C 08 38 01.09 +50 21 36.2 c 699
2001-12-03 11:26:22 C 11 52 47.84 +65 26 19.8 18.3 c 704
2001-12-03 11:48:43 C 11 52 53.07 +65 26 35.3 18.2 c 704
2001-12-03 12:10:55 C 11 52 58.31 +65 26 51.0 18.0 c 704
2002-02-24 12:43:23 C 18 55 31.21 +64 27 00.0 c 670
2002-02-24 13:36:02 C 18 55 35.11 +64 26 54.8 c 670
2002-03-09 12:04:27 C 19 14 36.67 +64 13 54.3 c 670
2002-03-09 13:03:55 C 19 14 39.09 +64 13 57.2 c 670
2002-03-26 23:09:42 C 19 22 29.29 +65 02 45.1 c 198
2002-03-26 23:17:30 C 19 22 29.23 +65 02 46.7 c 198
2002-03-26 23:40:43 C 19 22 29.06 +65 02 51.4 c 198
2002-03-28 00:53:19 C 19 22 11.55 +65 08 02.3 c 198
2002-03-28 00:58:06 C 19 22 11.50 +65 08 03.5 c 198
2002-03-28 01:18:07 C 19 22 11.25 +65 08 08.8 c 198
2002-04-01 10:17:50 C 19 19 49.70 +65 32 04.1 17.7 c 704
2002-04-01 10:35:13 C 19 19 49.11 +65 32 08.9 18.3 c 704
2002-04-01 10:52:29 C 19 19 48.48 +65 32 13.8 17.6 c 704
2002-04-01 11:09:47 C 19 19 47.89 +65 32 18.8 18.4 c 704
2002-04-01 11:27:04 C 19 19 47.18 +65 32 23.7 17.7 c 704
2002-04-02 10:12:32 C 19 19 00.73 +65 38 01.6 16.7 c 704
2002-04-02 10:30:11 C 19 19 00.02 +65 38 06.8 17.1 c 704
2002-04-02 10:37:10 C 19 18 59.80 +65 38 08.7 16.9 c 704
2002-04-02 10:50:01 C 19 18 59.22 +65 38 12.0 17.3 c 704
2002-04-02 10:54:49 C 19 18 59.12 +65 38 13.5 17.1 c 704
2002-04-02 11:09:56 C 19 18 58.40 +65 38 17.8 16.9 c 704
2002-04-02 11:12:13 C 19 18 58.38 +65 38 18.6 17.6 c 704
2002-04-02 11:30:14 C 19 18 57.57 +65 38 23.0 16.8 c 704
2002-04-02 11:31:00 C 19 18 57.49 +65 38 23.7 16.9 c 704
2002-04-06 10:31:20 C 19 14 32.27 +66 03 46.2 c 704
2002-04-06 10:48:49 C 19 14 31.16 +66 03 51.8 c 704
2002-04-06 11:06:03 C 19 14 30.15 +66 03 56.7 c 704
2002-04-06 11:23:38 C 19 14 28.92 +66 04 01.8 c 704
2002-04-06 23:01:39 C 19 13 48.41 +66 07 09.7 c 127
2002-04-06 23:09:08 C 19 13 47.95 +66 07 11.8 c 127
2002-04-06 23:16:53 C 19 13 47.49 +66 07 14.3 c 127
2002-04-07 22:54:23 C 19 12 18.08 +66 13 59.3 c 127
2002-04-07 23:08:55 C 19 12 17.15 +66 14 03.8 c 127
2002-04-08 09:11:27 C 19 11 36.60 +66 17 04.3 16.7 c 704
2002-04-08 09:31:58 C 19 11 35.18 +66 17 10.8 16.9 c 704
2002-04-08 09:49:45 C 19 11 33.89 +66 17 16.5 17.1 c 704
2002-04-08 10:06:58 C 19 11 32.63 +66 17 21.8 17.3 c 704
2002-04-08 10:24:56 C 19 11 31.29 +66 17 27.6 17.3 c 704
2002-04-09 09:59:54 C 19 09 49.47 +66 24 22.2 c 704
2002-04-09 10:16:53 C 19 09 48.02 +66 24 28.2 c 704
2002-04-09 10:34:03 C 19 09 46.67 +66 24 33.3 c 704
2002-04-09 10:50:58 C 19 09 45.31 +66 24 38.6 c 704
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)