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21592 (1998 VJ5)
Classification: Main-belt Asteroid          SPK-ID: 2021592
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2369178763854411 8.3189e-08  
a 2.872434397621039 3.5912e-08 AU
q 2.191903340080169 2.4309e-07 AU
i 11.46659154928522 1.0033e-05 deg
node 21.60554867813812 3.8552e-05 deg
peri 288.1751697033868 4.2902e-05 deg
M 185.9170738105797 1.9375e-05 deg
tp 2457860.359081561539
(2017-Apr-16.85908156)
9.8442e-05 JED
period 1778.171335569878
4.87
3.3346e-05
9.13e-08
d
yr
n .2024551812295552 3.7967e-09 deg/d
Q 3.55296545516191 4.442e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      11443 days (31.33 yr)  
   first obs. used      1983-10-01  
   last obs. used      2015-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49428  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:00:00  

Additional Information
 Earth MOID = 1.21164 AU 
 T_jup = 3.226 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO250424  
diameter diameter 11.13 km 1.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0821   0.016 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

21592 (1998 VJ5)          Discovered 1998-Nov-08 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 VJ5 = 1988 TG4 = 1993 VR5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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