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943 Begonia (A920 UA)
Classification: Main-belt Asteroid          SPK-ID: 2000943
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133332483634633 3.3562e-08  
a 3.116554048362686 1.2495e-08 au
q 2.451689449525172 1.0671e-07 au
i 12.10832676300412 3.888e-06 deg
node 113.7677189050888 2.1047e-05 deg
peri 4.131384986238297 2.334e-05 deg
M 310.5791840217512 1.1468e-05 deg
tp 2459276.378484924134
(2021-Mar-02.87848492)
6.4827e-05 TDB
period 2009.603698498212
5.50
1.2085e-05
3.309e-08
d
yr
n .1791397976969439 1.0773e-09 deg/d
Q 3.7814186472002 1.516e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2786  
   data-arc span      36535 days (100.03 yr)  
   first obs. used      1920-10-21  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:24:07  

Additional Information
 Earth MOID = 1.4681 au 
 Jupiter MOID = 1.33502 au 
 T_jup = 3.148 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456531.5 (2013-Aug-27.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118574348992228 3.3822e-08  
q 2.457503425486205 1.0746e-07 au
tp 2457270.036421302691
(2015-Sep-04.53642130)
6.0038e-05 TDB
node 113.8557803696264 2.1029e-05 deg
peri 4.536785180933641 2.3323e-05 deg
i 12.11007623696267 3.8886e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2786  
   data-arc span      36535 days (100.03 yr)  
   first obs. used      1920-10-21  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:24:07  

Additional Information
 Jupiter MOID = 1.33502 au 
 T_jup = 3.148 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.143945409174223E-15 -3.619413678654607E-15 -1.496657897903162E-14 -1.546874122820615E-15 1.361899508291901E-14 -6.404533534976631E-16
q -3.619413678654607E-15 1.154754506605299E-14 2.259222287249423E-13 5.4116873682683E-15 -2.344541298405938E-14 2.719406834440369E-15
tp -1.496657897903162E-14 2.259222287249423E-13 3.604612334615545E-9 -4.153888023075542E-12 6.345619366943783E-10 1.15157839238428E-12
node -1.546874122820615E-15 5.4116873682683E-15 -4.153888023075542E-12 4.42200985738123E-10 -4.325420477390643E-10 -6.979883520384096E-13
peri 1.361899508291901E-14 -2.344541298405938E-14 6.345619366943783E-10 -4.325420477390643E-10 5.439805795617571E-10 8.101904222301879E-13
i -6.404533534976631E-16 2.719406834440369E-15 1.15157839238428E-12 -6.979883520384096E-13 8.101904222301879E-13 1.512134727697389E-11

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 9.8   n/a MPO502162 IRAS observations used: 11
diameter diameter 70.572 km 2.446 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.66 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.044   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.783   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.48 deg.
Tholen spectral type spec_T ST   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

943 Begonia (A920 UA)          Discovered 1920-Oct-20 by Reinmuth, K. at Heidelberg
Oct. 12 observation by A. Schwassmann, Bergedorf, was apparently a prediscovery.
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
1902-Nov-03 03:05 00:02 Jupiter 1.43732447058835 1.43732301388884 1.4373259273265 2.47473595465374 2.22389478601809 2416056.628336884 2.3594525992059 405.17114378256 24.1097008639746 78.5387752683607 2581703.17972169 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
1913-Feb-23 03:50 00:02 Jupiter 1.61367910624526 1.61367723821328 1.61368097427752 2.51429134271155 2.29605270840857 2419821.659704114 2.16739223832669 130.345132697875 89.4242413575697 64.8367315906534 2097680.59405348 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
1975-May-17 10:55 00:01 Jupiter 1.92077990128212 1.92077891208466 1.9207808904797 2.46013058235486 2.27382620515195 2442549.955091545 1.05674145339543 67.1194677004562 6.74646631544373 66.811243883009 1863319.28755725 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
1985-Jun-08 19:37 < 00:01 Jupiter 1.3568813875449 1.35688101664558 1.3568817584473 2.5535803832413 2.29614645241411 2446225.317491628 0.592017580255523 132.979899874423 19.1445788192866 82.9198026451032 2653305.3092215 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
1995-Sep-08 21:55 < 00:01 Jupiter 1.86469268383638 1.86469203304861 1.86469333462532 2.56218985435098 2.37830444041497 2449969.413510400 0.456158821399233 171.201238023231 26.8913635231539 83.4963474987026 2705865.93683036 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
2057-Nov-06 06:05 00:01 Jupiter 1.6824782961661 1.68247749186022 1.68247910047293 1.99017083263755 1.71869285303514 2472673.753422634 1.0121629205847 87.8564301637697 53.5685576615251 58.6324109766849 2145274.67498037 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
2068-Jan-20 08:50 00:01 Jupiter 1.39788960006379 1.39788905562957 1.39789014449833 2.5931975923657 2.34793841419441 2476400.867726120 1.00798559611892 137.216707514264 29.7275970119259 -88.1878100638224 2662515.64748299 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
2140-Apr-28 10:28 00:03 Jupiter 1.46186184087011 1.46186031849343 1.46186336327713 2.20597663661287 1.9254884783184 2502796.936285718 2.63629345367786 375.171580926616 49.3153512088548 73.7002650300264 1973581.51278328 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24
2150-Aug-14 00:55 00:03 Jupiter 1.5729893299746 1.5729871702851 1.57299148966427 2.63733766502057 2.42458057182944 2506556.538091067 2.72575082212648 132.443802684873 97.3101511182599 -63.6864032166459 1807070.1017765 T 42 CATAB v2.0f-lin.ifort 2020-Nov-13 04:24:15 2020-Nov-13 04:24

Alternate Designations
 A920 UA = 1944 DM = 1947 RC = 1977 FU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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