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117307 (2004 VY21)
Classification: Main-belt Asteroid          SPK-ID: 2117307
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3076647122484251 5.3362e-08  
a 3.114331780867257 3.0951e-08 au
q 2.156161789660608 1.7591e-07 au
i 15.49841091975517 6.8094e-06 deg
node 230.0240563910111 2.1164e-05 deg
peri 66.41791570615212 2.327e-05 deg
M 26.90656992287857 1.1134e-05 deg
tp 2458850.461891813447
(2020-Jan-01.96189181)
6.0709e-05 TDB
period 2007.454651483888
5.50
2.9926e-05
8.193e-08
d
yr
n .1793315728123134 2.6733e-09 deg/d
Q 4.072501772073908 4.0473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      7538 days (20.64 yr)  
   first obs. used      1998-09-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:38  

Additional Information
 Earth MOID = 1.19396 au 
 Jupiter MOID = 1.44505 au 
 T_jup = 3.089 
[ 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 14.4   n/a MPO475029  
diameter diameter 8.012 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117307 (2004 VY21)          Discovered 2004-Nov-04 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 VY21 = 2003 LE9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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