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5295 Masayo (1991 CE)
Classification: Main-belt Asteroid          SPK-ID: 2005295
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08852191710727739 3.1787e-08  
a 3.150495713156468 1.6076e-08 au
q 2.871607792789598 9.6347e-08 au
i 6.317508399756851 4.3453e-06 deg
node 82.23770858933565 3.1944e-05 deg
peri 86.21104952455194 4.1422e-05 deg
M 70.34321660623753 2.522e-05 deg
tp 2458601.395624439981
(2019-Apr-27.89562444)
0.0001433 TDB
period 2042.522109926754
5.59
1.5633e-05
4.28e-08
d
yr
n .1762526820397111 1.349e-09 deg/d
Q 3.429383633523338 1.7499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2403  
   data-arc span      24141 days (66.09 yr)  
   first obs. used      1954-06-30  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:26:13  

Additional Information
 Earth MOID = 1.88719 au 
 Jupiter MOID = 1.5787 au 
 T_jup = 3.192 
[ 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 11.9   n/a MPO302096  
diameter diameter 21.045 km 0.299 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.100   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5295 Masayo (1991 CE)          Discovered 1991-Feb-05 by Mizuno and Furuta at Kani
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 CE = 1952 BX1 = 1969 EQ1 = 1978 WD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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