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1004 Belopolskya (A923 RR)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001004
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08811671456258854 3.5908e-08  
a 3.401707870096701 1.6211e-08 au
q 3.101960548682079 1.2316e-07 au
i 2.97931888662869 4.023e-06 deg
node 153.5183536350711 6.5759e-05 deg
peri 214.7020117981526 6.8884e-05 deg
M 151.4056519580026 2.1938e-05 deg
tp 2458036.707514388404
(2017-Oct-10.20751439)
0.00013732 TDB
period 2291.627098018884
6.27
1.6382e-05
4.485e-08
d
yr
n .1570936215194962 1.123e-09 deg/d
Q 3.701455191511323 1.764e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3342  
   data-arc span      35494 days (97.18 yr)  
   first obs. used      1923-09-13  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43015  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:36:34  

Additional Information
 Earth MOID = 2.10137 au 
 Jupiter MOID = 1.75724 au 
 T_jup = 3.138 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456210.5 (2012-Oct-10.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08674612030183027 3.5934e-08  
q 3.111838968172358 1.2407e-07 au
tp 2455758.799680329491
(2011-Jul-16.29968033)
0.00013548 TDB
node 153.5885094424908 6.5874e-05 deg
peri 217.0558317721369 6.91e-05 deg
i 2.97537274329193 4.0176e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3342  
   data-arc span      35494 days (97.18 yr)  
   first obs. used      1923-09-13  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43015  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:36:34  

Additional Information
 Jupiter MOID = 1.75724 au 
 T_jup = 3.138 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.291243242723066E-15 -4.426532223690101E-15 -1.473403748577407E-13 3.977736895871656E-15 -5.775866243270669E-14 1.680565279860129E-16
q -4.426532223690101E-15 1.539305776950923E-14 8.485468518594367E-13 -1.717561752979497E-14 2.57195370858314E-13 -4.387526804030122E-16
tp -1.473403748577407E-13 8.485468518594367E-13 1.835460866308244E-8 -1.921334483560456E-11 2.841485777654208E-9 -3.290908069998916E-13
node 3.977736895871656E-15 -1.717561752979497E-14 -1.921334483560456E-11 4.339320490713383E-9 -4.336206032795023E-9 2.033749120470303E-11
peri -5.775866243270669E-14 2.57195370858314E-13 2.841485777654208E-9 -4.336206032795023E-9 4.774781021431865E-9 -2.030755663519664E-11
i 1.680565279860129E-16 -4.387526804030122E-16 -3.290908069998916E-13 2.033749120470303E-11 -2.030755663519664E-11 1.614145527504399E-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: 9
diameter diameter 71.60 km 2.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
rotation period rot_per 9.038 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Carreno, A.; Arce, E.; Fornas, G.; Mas, V. (2019) Minor Planet Bull. 46, 200-203.]
geometric albedo albedo 0.0348   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
B-V BV 0.720   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.45 deg.
U-B UB 0.120   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.45 deg.
Tholen spectral type spec_T PC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

1004 Belopolskya (A923 RR)          Discovered 1923-Sep-05 by Belyavskij, S. at Simeis
Independent discovery Sept. 13 by K. Reinmuth, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A923 RR = 1936 WB = 1937 YB = 1938 AA = 1963 DC = 1974 WK = 2004 SU12 = A917 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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