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JPL Small-Body Database Browser
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920 Rogeria (A919 RC)
Classification: Main-belt Asteroid          SPK-ID: 2000920
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1058006571291361 3.1208e-08  
a 2.621340567345115 8.9435e-09 au
q 2.34400101276074 8.1986e-08 au
i 11.5820074855132 5.2839e-06 deg
node 192.8242062304075 1.7559e-05 deg
peri 268.6055958218674 3.1817e-05 deg
M 69.71686805728548 2.5737e-05 deg
tp 2458300.294276611175
(2018-Jun-30.79427661)
0.00011088 TDB
period 1550.1852482985
4.24
7.9334e-06
2.172e-08
d
yr
n .2322303095034222 1.1885e-09 deg/d
Q 2.898680121929491 9.8897e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2467  
   data-arc span      36412 days (99.69 yr)  
   first obs. used      1919-09-01  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43433  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:16:03  

Additional Information
 Earth MOID = 1.39502 au 
 Jupiter MOID = 2.29738 au 
 T_jup = 3.368 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455906.5 (2011-Dec-11.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1059471086353778 3.1189e-08  
q 2.344222764609466 8.1962e-08 au
tp 2455201.903117348286
(2010-Jan-05.40311735)
0.00011277 TDB
node 192.9053413602166 1.7565e-05 deg
peri 269.1969916926809 3.1787e-05 deg
i 11.57848370539537 5.2831e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2467  
   data-arc span      36412 days (99.69 yr)  
   first obs. used      1919-09-01  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43433  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:16:03  

Additional Information
 Jupiter MOID = 2.29738 au 
 T_jup = 3.368 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.727626347242118E-16 -2.543908064932673E-15 -3.163880123310284E-13 -3.493844441492001E-16 -9.193782507025469E-14 8.547387115970231E-16
q -2.543908064932673E-15 6.717709237737486E-15 6.347409870502989E-13 9.133053085017296E-16 2.003722182095142E-13 -1.363732923320984E-15
tp -3.163880123310284E-13 6.347409870502989E-13 1.27171909398834E-8 -2.048902626406622E-11 2.996141347578865E-9 -7.912303564404593E-12
node -3.493844441492001E-16 9.133053085017296E-16 -2.048902626406622E-11 3.085345667192798E-10 -3.064128224961414E-10 9.096281253269918E-12
peri -9.193782507025469E-14 2.003722182095142E-13 2.996141347578865E-9 -3.064128224961414E-10 1.010400703871427E-9 -1.059558869850269E-11
i 8.547387115970231E-16 -1.363732923320984E-15 -7.912303564404593E-12 9.096281253269918E-12 -1.059558869850269E-11 2.791084510051814E-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 11.19   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
diameter diameter 26.656 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.244 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Polakis, T. (2018) Minor Planet Bull. 45, 112-115.]
geometric albedo albedo 0.076   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.800   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.76 deg.
U-B UB 0.300   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.76 deg.
Tholen spectral type spec_T DTU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

920 Rogeria (A919 RC)          Discovered 1919-Sep-01 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A919 RC = 1973 QC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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