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
2022-08-29 05:52:38 C 03 53 39.233 -41 20 42.83 V W68
2022-08-29 06:12:18 C 03 53 38.940 -41 20 53.45 V W68
2022-08-29 06:16:51 C 03 53 38.976 -41 20 54.71 V W68
2022-08-29 06:43:42 C 03 53 38.666 -41 21 07.42 V W68
2022-09-03 23:36:35 C 03 51 38.194 -42 22 25.86 V M22
2022-09-03 23:41:13 C 03 51 38.138 -42 22 27.80 V M22
2022-09-03 23:45:46 C 03 51 38.002 -42 22 30.40 V M22
2022-09-04 00:17:37 C 03 51 37.397 -42 22 45.12 V M22
2022-09-16 01:22:31 C 03 42 48.742 -44 27 55.51 V M22
2022-09-16 01:37:07 C 03 42 48.163 -44 28 01.78 V M22
2022-09-16 02:03:25 C 03 42 46.987 -44 28 12.04 V M22
2022-09-16 02:10:56 C 03 42 46.687 -44 28 14.63 V M22
2022-09-21 12:58:24 C 03 36 41.399 -45 18 57.77 U F52
2022-09-21 13:20:13 C 03 36 40.228 -45 19 05.72 U F52
2022-09-21 13:31:17 C 03 36 39.636 -45 19 10.03 U F52
2022-09-22 05:01:02 C 03 35 51.341 -45 24 43.16 V W68
2022-09-22 05:04:57 C 03 35 51.182 -45 24 44.57 V W68
2022-09-22 05:12:57 C 03 35 50.746 -45 24 47.45 V W68
2022-09-22 05:44:06 C 03 35 49.056 -45 24 58.50 V W68
2022-09-24 01:35:29 C 03 33 25.646 -45 40 18.05 V M22
2022-09-24 01:40:01 C 03 33 25.510 -45 40 19.78 V M22
2022-09-24 01:47:49 C 03 33 24.936 -45 40 22.51 V M22
2022-09-24 02:03:05 C 03 33 24.108 -45 40 27.44 V M22
2022-09-30 04:12:13 C 03 24 27.607 -46 24 48.67 V W68
2022-09-30 04:16:08 C 03 24 27.307 -46 24 49.50 V W68
2022-09-30 04:24:45 C 03 24 26.796 -46 24 52.20 V W68
2022-09-30 05:14:00 C 03 24 23.400 -46 25 04.48 V W68
2022-10-04 04:38:13 C 03 17 47.681 -46 47 25.40 V W68
2022-10-04 04:41:27 C 03 17 47.508 -46 47 26.27 V W68
2022-10-04 04:46:00 C 03 17 47.042 -46 47 28.72 V W68
2022-10-04 04:54:01 C 03 17 46.594 -46 47 27.71 V W68
2022-10-13 20:30:50 C 02 59 51.955 -47 15 07.38 V M22
2022-10-13 20:34:50 C 02 59 51.610 -47 15 07.16 V M22
2022-10-13 20:39:26 C 02 59 51.245 -47 15 07.09 V M22
2022-10-13 20:49:56 C 02 59 50.378 -47 15 07.63 V M22
2022-10-16 05:25:30 C 02 55 10.512 -47 15 31.21 V W68
2022-10-16 05:30:03 C 02 55 10.121 -47 15 30.31 V W68
2022-10-16 05:38:30 C 02 55 09.329 -47 15 31.14 V W68
2022-10-16 06:29:43 C 02 55 05.059 -47 15 29.70 V W68
2022-10-20 06:36:49 C 02 47 02.210 -47 09 52.24 V W68
2022-10-20 06:42:02 C 02 47 01.793 -47 09 51.16 V W68
2022-10-20 07:17:15 C 02 46 58.718 -47 09 48.06 V W68
2022-10-20 07:31:06 C 02 46 57.581 -47 09 46.69 V W68
2022-10-24 05:25:59 C 02 39 03.317 -46 56 31.56 V W68
2022-10-24 05:50:06 C 02 39 01.387 -46 56 27.82 V W68
2022-10-24 05:54:48 C 02 39 00.943 -46 56 26.52 V W68
2022-10-24 06:35:33 C 02 38 57.437 -46 56 18.96 V W68
2022-11-01 03:37:52 C 02 23 26.203 -46 06 32.04 V W68
2022-11-01 04:22:51 C 02 23 22.615 -46 06 16.88 V W68
2022-11-01 04:59:44 C 02 23 19.574 -46 06 04.39 V W68
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)