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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051464636373374 3.0443e-08  
a 2.623414372533611 8.2782e-09 au
q 2.347571628606338 7.9871e-08 au
i 11.57650286617512 4.953e-06 deg
node 192.786873686807 1.7104e-05 deg
peri 268.9659070174986 2.9942e-05 deg
M 162.2515994601513 2.4327e-05 deg
tp 2458301.003971414251
(2018-Jul-01.50397141)
0.00010464 TDB
period 1552.025194997944
4.25
7.3461e-06
2.011e-08
d
yr
n .2319549973545866 1.0979e-09 deg/d
Q 2.899257116460884 9.1486e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2778  
   data-arc span      36815 days (100.79 yr)  
   first obs. used      1919-09-01  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41751  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:22:47  

Additional Information
 Earth MOID = 1.39841 au 
 Jupiter MOID = 2.29288 au 
 T_jup = 3.367 
[ 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 11.3   n/a MPO473775 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-August); 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

[ 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
1974-Feb-04 19:31 < 00:01 Juno 0.0443689094987042 0.0443666663022361 0.0443711527628945 3.69800593863413 3.6980058644861 2442083.313480666 0.425919278767047 146.907287280438 47.6151371742441 43.3521745339755 101059.953375133 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 15:23:00 2020-Jun-23 15:23

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