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5850 Masaharu (1990 XM)
Classification: Main-belt Asteroid          SPK-ID: 2005850
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1739000832999854 1.5903e-08  
a 2.162449517534151 5.6597e-09 au
q 1.786399366302949 3.5186e-08 au
i 2.348765808785855 4.2657e-07 deg
node 114.5264172081436 7.546e-06 deg
peri 258.3496941801988 9.5927e-06 deg
M 261.7952255071924 5.4274e-06 deg
tp 2459713.345464856044
(2022-May-13.84546486)
1.8142e-05 TDB
period 1161.495130326171
3.18
4.5599e-06
1.248e-08
d
yr
n .3099453373505793 1.2168e-09 deg/d
Q 2.538499668765353 6.6439e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2243  
   data-arc span      17026 days (46.61 yr)  
   first obs. used      1974-11-15  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47905  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 00:11:28  

Additional Information
 Earth MOID = .787683 au 
 Jupiter MOID = 2.92718 au 
 T_jup = 3.675 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.27   n/a E2021B10  
diameter diameter 3.342 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.334   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5850 Masaharu (1990 XM)          Discovered 1990-Dec-08 by Endate and Watanabe at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 XM = 1974 VS1 = 1977 RJ20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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