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906 Repsolda (A918 UF)
Classification: Main-belt Asteroid          SPK-ID: 2000906
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .08653930263253018 3.6574e-08  
a 2.893653079318594 1.1397e-08 au
q 2.643238359773889 1.0803e-07 au
i 11.78208874607463 4.3957e-06 deg
node 40.19903348201957 1.9877e-05 deg
peri 294.5246765000729 3.2685e-05 deg
M 281.0333562062995 2.7399e-05 deg
tp 2459394.874930161451
(2021-Jun-29.37493016)
0.00013752 TDB
period 1797.910713149091
4.92
1.0622e-05
2.908e-08
d
yr
n .2002324127483783 1.1829e-09 deg/d
Q 3.144067798863299 1.2383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2815  
   data-arc span      38196 days (104.57 yr)  
   first obs. used      1916-04-11  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:57:01  

Additional Information
 Earth MOID = 1.66146 au 
 Jupiter MOID = 2.19721 au 
 T_jup = 3.253 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456209.5 (2012-Oct-09.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08349222363133897 3.6561e-08  
q 2.65628171685432 1.0753e-07 au
tp 2455805.996175559064
(2011-Sep-01.49617556)
0.00013824 TDB
node 40.3249691061196 1.9819e-05 deg
peri 296.0885604489865 3.3402e-05 deg
i 11.79483409784585 4.3993e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2815  
   data-arc span      38196 days (104.57 yr)  
   first obs. used      1916-04-11  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:57:01  

Additional Information
 Jupiter MOID = 2.19721 au 
 T_jup = 3.253 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.336697811704017E-15 -3.912558377456366E-15 -4.065213048555104E-14 -2.157758297740184E-15 -2.379493634290875E-15 1.154361083163949E-16
q -3.912558377456366E-15 1.156362664645013E-14 2.307551376316203E-13 7.939243002611721E-15 2.896321188711073E-14 -6.286500094795661E-16
tp -4.065213048555104E-14 2.307551376316203E-13 1.911161937418528E-8 1.203095348202094E-11 3.737455647919667E-9 -2.859125176042092E-12
node -2.157758297740184E-15 7.939243002611721E-15 1.203095348202094E-11 3.927890345778997E-10 -3.817245294932888E-10 1.733251377900942E-12
peri -2.379493634290875E-15 2.896321188711073E-14 3.737455647919667E-9 -3.817245294932888E-10 1.115667056504578E-9 -2.237451208604924E-12
i 1.154361083163949E-16 -6.286500094795661E-16 -2.859125176042092E-12 1.733251377900942E-12 -2.237451208604924E-12 1.935395767299996E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.4   n/a MPO384753  
diameter diameter 65.752 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.368 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Alkema, M.S. (2013) Minor Planet Bull. 40, 133-137.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.065   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

906 Repsolda (A918 UF)          Discovered 1918-Oct-30 by Schwassmann, A. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A918 UF = A903 UC = A916 GB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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