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1580 Betulia (1950 KA)
Classification: Amor [NEO]          SPK-ID: 2001580
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 231 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4873502364761739 2.2741e-08  
a 2.197150031438465 2.7446e-10 au
q 1.126368444043296 5.0021e-08 au
i 52.09207037962277 9.5166e-06 deg
node 62.29781712181257 2.5227e-06 deg
peri 159.5179483080446 7.2733e-06 deg
M 195.0724539815504 2.1045e-06 deg
tp 2459545.477652079356
(2021-Nov-26.97765208)		 6.9886e-06 TDB
period 1189.564505656448
3.26		 2.2289e-07
6.102e-10		 d
yr
n .3026317600165265 5.6705e-11 deg/d
Q 3.267931618833634 4.0821e-10 au
   Orbit Determination Parameters
   # obs. used (total)      1220  
   # delay obs. used      5  
   # Doppler obs. used      6  
   data-arc span      25404 days (69.55 yr)  
   first obs. used      1950-05-22  
   last obs. used      2019-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51862  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-11 04:52:05  

Additional Information
 Earth MOID = .136136 au 
 Jupiter MOID = 1.86223 au 
 T_jup = 3.065 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO435711  
magnitude slope G 0.00   n/a PDS3 (MPC 17262) Fit
diameter diameter 5.8 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 6.1324 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Austin, R.R.D. (1976) Southern Stars 26, 228-230.]
[Tedesco, E.F.; Drummond, J.; Candy, M.; Birch, P.; et al. (1978) Icarus 35, 344-359.]
[Drummond, J.D.; Wisniewski, W.Z. (1990) Icarus 83, 349-359.]
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Kaasalainen, M.; et al. (2004) Icarus 167, 178-196.]
[Magri, C.; Ostro, S.J.; Scheeres, D.J.; Nolan, M.C.; et al. (2007) Icarus 196, 152-177.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
geometric albedo albedo 0.08   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV 0.656   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=14; phase (min.=8.86, mean=18.58, max.=39.44) deg.
U-B UB 0.249   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=8.86, mean=15.33, max.=39.44) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1580 Betulia (1950 KA)          Discovered 1950-May-22 by Johnson, E. L. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1911-May-07 13:13 < 00:01 Earth 0.485626215763591 0.485625561739861 0.485626869787376 28.6869577688821 28.6867665075453 2419164.050673935 0.0169463918493689 33.8287646980001 10.6310161532002 16.2479937431624 2770743.11196921 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1924-May-10 05:06 < 00:01 Earth 0.383322917410962 0.383322321769324 0.383323513052687 28.2361553667047 28.2359091917298 2423915.712635238 0.0164008462931143 31.1543311521501 8.89066909789025 18.3502622125505 2638841.42926701 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1929-Jun-09 14:54 < 00:01 Jupiter 1.84955828830083 1.84955799265108 1.84955858395067 11.3576536738183 11.3172601927205 2425772.120616637 0.108934643672663 40.3997635089636 11.2716287907185 -75.8759960935198 5637856.05772969 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1937-May-14 10:01 < 00:01 Earth 0.275066630827496 0.275066113516888 0.275067148138245 27.9374281847859 27.9370814553447 2428667.917439976 0.0141717526551445 27.6794157521427 6.40248611094535 21.8793466377479 2708868.63232741 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1950-May-18 06:48 < 00:01 Earth 0.18818420144394 0.188183789979817 0.188184612908351 27.8499362850679 27.849427881073 2433419.783412997 0.0115443306805718 23.7354459256836 4.48709403742887 30.7936844937236 3291821.97480462 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1963-May-19 23:06 < 00:01 Earth 0.157874883473203 0.157874574882218 0.157875192064403 27.9571291241865 27.9565254377333 2438169.462746897 0.0086981616293902 18.1129221153414 4.37469913964438 32.9263980956012 3069246.91541573 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1965-Mar-17 09:33 < 00:01 Jupiter 1.92262339506683 1.92262299761133 1.92262379252267 11.1486207803849 11.1090338955244 2438836.898158943 0.118545277443799 42.4300312248096 5.86446194198514 -63.1694775884727 5787957.65558299 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1976-May-22 19:40 < 00:01 Earth 0.129802634977348 0.129802488089788 0.129802781865291 28.228125195992 28.2273979984417 2442921.319417322 0.00547111461643591 13.9476860736339 2.55791138560614 59.9611392020302 6350970.58591806 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
1989-May-27 05:12 < 00:01 Earth 0.184957795130544 0.184957770217759 0.184957820043329 28.8707345094011 28.8702355265305 2447673.716958787 0.00419505563155783 12.7707558581312 1.23594716018795 -89.4339892691936 21122787.4108652 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2002-May-29 13:32 < 00:01 Earth 0.23779707266222 0.237797066160373 0.237797079164067 29.2104936255728 29.210110033337 2452424.063710298 0.00408639169774553 11.0243874984734 0.323658206084178 -89.9040627772998 41523512.1227733 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2015-Jun-03 08:52 < 00:01 Earth 0.352185564779529 0.352185504597024 0.352185624962214 30.3291401010433 30.3288906516258 2457176.869197865 0.00489540514258167 14.6405687905665 1.36455467631994 -79.4339768453081 32575244.5640454 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2028-Jun-07 13:47 < 00:01 Earth 0.47784704071415 0.477846936332118 0.477847145096426 31.8636831209586 31.863508124736 2461930.074593043 0.00705654523203711 20.8566852786709 2.57514389280332 -77.3756334931469 24331376.6846885 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2059-Aug-19 22:11 < 00:01 Jupiter 1.97453466518487 1.97453436388751 1.97453496648224 12.0654750310806 12.0298687134505 2473325.424454806 0.131950688662542 45.0958428073004 14.3821820342914 84.6590185067984 5708790.13123584 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2090-May-08 15:44 < 00:01 Earth 0.485776845958664 0.485776643041518 0.485777048875836 28.7177717412904 28.7175807444201 2484545.155405405 0.0258328260729253 16.3028403766057 8.5267537690075 66.9157721834191 7758712.2688009 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2095-May-29 16:59 < 00:01 Jupiter 1.86519076171268 1.8651904972501 1.86519102617537 11.5815570200825 11.5422797042644 2486392.207514310 0.12976785562385 45.0303103604392 11.5928447533662 -81.8865712314338 5568966.23816977 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2103-May-13 09:00 < 00:01 Earth 0.380082726162993 0.380082506742672 0.380082945583379 28.2327618415931 28.2325135381341 2489296.874736495 0.0249991661177545 17.2057447264599 8.26654102520759 61.6384388797883 6026638.62852657 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2116-May-15 23:09 < 00:01 Earth 0.287776756555207 0.287776536824216 0.287776976286378 27.8883437369206 27.8880117381269 2494048.464494692 0.024406225096035 18.9198266708871 7.43894776014679 62.4544877072952 5114959.2510657 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2129-May-17 21:30 < 00:01 Earth 0.241704728831153 0.241704512157046 0.241704945505603 27.8699501263829 27.8695545830216 2498798.396119964 0.0256389479527862 21.258447879452 6.68793582238751 65.1315909012828 4911992.47354969 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2131-Mar-07 17:55 < 00:01 Jupiter 1.86705959004579 1.86705922924358 1.86705995084832 11.3253137954455 11.2851849532922 2499457.246693437 0.141702620070369 46.1678094135516 8.03998516425762 -69.2643741311308 5638741.43264782 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2142-May-21 08:10 < 00:01 Earth 0.174616813192643 0.174616669488034 0.174616956897579 27.9023683137668 27.901821436982 2503549.839933532 0.0254195429555438 23.3825620795915 6.05327188556074 80.2232106883702 4264785.51769246 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2155-May-25 00:50 < 00:01 Earth 0.150781216223434 0.150781008484449 0.150781423963593 28.1813748361139 28.1807477780317 2508301.534968492 0.0266282590813802 27.1131056374836 5.66153444821264 -70.9025360326086 3804952.32517921 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2166-Dec-13 09:43 < 00:01 Jupiter 1.9751507363429 1.97515022485315 1.97515124783299 11.2307012158816 11.1924515161128 2512521.904630422 0.170685226954588 48.7499787642281 3.71212028476882 -58.6731405571464 5887751.31572686 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2168-May-26 02:13 < 00:01 Earth 0.172604785423059 0.172604419920637 0.172605150927228 28.335729435054 28.3351846448341 2513051.592572603 0.0308203761853892 33.9209060199577 5.30222787564435 -58.6360163725854 4214099.51473029 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2181-May-29 16:14 < 00:01 Earth 0.237568013007463 0.237567411799139 0.237568614217394 28.8924349458482 28.8920467569017 2517803.176330231 0.0357618059563815 43.4443515431532 5.74494400015132 -46.8989631812228 4491795.0805191 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
2194-Jun-02 22:14 < 00:01 Earth 0.334963484075223 0.334962711447439 0.334964256704531 29.8784076125268 29.8781413810638 2522555.426380488 0.0406089077495368 52.9012165469276 7.26821188927651 -43.7744807404306 4616801.02575136 T 231 CATAB v2.0f-lin.ifort 2019-Dec-11 04:52:13 2019-Dec-11 04:52
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