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3878 Jyoumon (1982 VR4)
Classification: Main-belt Asteroid          SPK-ID: 2003878
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766573691754633 3.7787e-08  
a 3.114193949983708 1.7712e-08 au
q 2.564048639677442 1.186e-07 au
i 2.247097324987117 4.5206e-06 deg
node 157.850795138409 9.0123e-05 deg
peri 196.3811794246407 9.0726e-05 deg
M 283.7953173616589 1.1518e-05 deg
tp 2459025.409136840641
(2020-Jun-24.90913684)
6.5888e-05 TDB
period 2007.321387172446
5.50
1.7125e-05
4.689e-08
d
yr
n .1793434784786025 1.53e-09 deg/d
Q 3.664339260289974 2.0841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1831  
   data-arc span      25514 days (69.85 yr)  
   first obs. used      1949-11-19  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52028  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:30:33  

Additional Information
 Earth MOID = 1.55834 au 
 Jupiter MOID = 1.77367 au 
 T_jup = 3.193 
[ 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 13.1   n/a MPO435735  
diameter diameter 13.627 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3878 Jyoumon (1982 VR4)          Discovered 1982-Nov-14 by Kosai, H. and Hurukawa, K. at Kiso Station
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 VR4 = 1976 SA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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