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21084 (1991 UV3)
Classification: Main-belt Asteroid          SPK-ID: 2021084
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718411523828332 6.1847e-08  
a 2.726067845609167 2.3236e-08 AU
q 2.2576172055459 1.7147e-07 AU
i 8.805364718314372 6.9096e-06 deg
node 237.6396500447464 4.5559e-05 deg
peri 224.9333272210162 5.4484e-05 deg
M .04370526387697726 2.3857e-05 deg
tp 2457000.300411891142
(2014-Dec-08.80041189)
0.00010895 JED
period 1644.006071925182
4.50
2.1019e-05
5.755e-08
d
yr
n .2189772934222979 2.7997e-09 deg/d
Q 3.194518485672433 2.7229e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      8540 days (23.38 yr)  
   first obs. used      1991-10-31  
   last obs. used      2015-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53414  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:08:12  

Additional Information
 Earth MOID = 1.28382 AU 
 T_jup = 3.318 
[ 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 14.1 mag n/a MPO324504  

21084 (1991 UV3)          Discovered 1991-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 UV3 = 1998 KV27 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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