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
2022-11-01 05:05:39 C 02 23 19.085 -46 06 02.63 V W68
2022-11-14 21:04:38 C 01 59 47.491 -43 33 51.01 V M22
2022-11-14 21:10:32 C 01 59 47.150 -43 33 47.56 V M22
2022-11-14 21:20:44 C 01 59 46.548 -43 33 40.72 V M22
2022-11-14 22:09:39 C 01 59 43.421 -43 33 13.39 V M22
2022-11-22 20:46:43 C 01 48 58.070 -41 34 31.08 V M22
2022-11-22 21:02:29 C 01 48 57.283 -41 34 19.78 V M22
2022-11-22 21:09:07 C 01 48 56.890 -41 34 14.77 V M22
2022-11-22 21:16:32 C 01 48 56.501 -41 34 10.49 V M22
2022-12-22 01:29:43 C 01 29 25.27 -32 44 30.6 V W94
2022-12-22 01:39:12 C 01 29 25.14 -32 44 23.1 V W94
2022-12-22 01:48:40 C 01 29 25.02 -32 44 15.4 V W94
2023-11-13 05:34:54 C 04 07 20.969 +14 23 02.29 V W68
2023-11-13 05:40:22 C 04 07 20.652 +14 23 02.40 V W68
2023-11-13 06:21:51 C 04 07 18.127 +14 23 10.39 V W68
2023-11-13 06:39:02 C 04 07 17.062 +14 23 12.48 V W68
2023-11-16 05:01:00 C 04 03 00.439 +14 35 24.36 V W68
2023-11-16 05:22:43 C 04 02 58.968 +14 35 28.14 V W68
2023-11-16 05:27:18 C 04 02 58.649 +14 35 28.82 V W68
2023-11-16 06:08:11 C 04 02 56.095 +14 35 36.10 V W68
2023-11-18 05:59:31 C 03 59 57.938 +14 43 57.94 V W68
2023-11-18 06:04:44 C 03 59 57.574 +14 43 58.87 V W68
2023-11-18 06:12:41 C 03 59 57.091 +14 44 00.10 V W68
2023-11-18 07:01:08 C 03 59 54.043 +14 44 08.27 V W68
2023-11-20 09:26:15 C 03 56 43.919 +14 52 56.71 V 703
2023-11-20 09:33:54 C 03 56 43.494 +14 52 57.61 V 703
2023-11-20 09:41:33 C 03 56 42.911 +14 53 00.06 V 703
2023-11-20 09:49:12 C 03 56 42.475 +14 53 01.14 V 703
2023-11-21 08:00:27 C 03 55 18.365 +14 56 56.54 V 703
2023-11-21 08:07:51 C 03 55 17.875 +14 56 56.94 V 703
2023-11-21 08:15:14 C 03 55 17.458 +14 56 58.38 V 703
2023-11-21 08:22:38 C 03 55 16.914 +14 57 00.07 V 703
2023-11-22 05:03:58 C 03 53 58.171 +15 00 39.35 V 703
2023-11-22 05:04:36 C 03 53 58.283 +15 00 40.14 V 703
2023-11-22 05:11:33 C 03 53 57.822 +15 00 41.44 V 703
2023-11-22 05:12:12 C 03 53 57.800 +15 00 41.04 V 703
2023-11-22 05:19:09 C 03 53 57.340 +15 00 43.16 V 703
2023-11-22 05:19:47 C 03 53 57.268 +15 00 42.26 V 703
2023-11-22 05:26:44 C 03 53 56.850 +15 00 44.10 V 703
2023-11-22 05:27:23 C 03 53 56.800 +15 00 43.85 V 703
2023-11-23 03:54:48 C 03 52 31.166 +15 04 42.60 V 703
2023-11-23 04:01:55 C 03 52 30.659 +15 04 44.26 V 703
2023-11-23 04:09:03 C 03 52 30.148 +15 04 45.98 V 703
2023-11-23 04:16:10 C 03 52 29.741 +15 04 47.17 V 703
2023-11-23 08:59:45 C 03 52 11.618 +15 05 38.04 V T05
2023-11-23 09:04:20 C 03 52 11.278 +15 05 39.37 V T05
2023-11-23 09:08:57 C 03 52 10.990 +15 05 39.30 V T05
2023-11-23 09:16:45 C 03 52 10.531 +15 05 41.03 V T05
2023-12-04 02:46:22 C 03 35 52.070 +15 51 55.55 V W68
2023-12-04 02:50:22 C 03 35 51.847 +15 51 55.69 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)