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249664 (1999 VG42)
Classification: Main-belt Asteroid          SPK-ID: 2249664
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978515446055206 6.6098e-08  
a 3.196854295181008 2.7275e-08 au
q 2.564351735000653 2.0673e-07 au
i 6.912773578366629 5.8526e-06 deg
node 234.6827117581706 6.7039e-05 deg
peri 152.406919067264 6.9404e-05 deg
M 152.3943259626917 1.6939e-05 deg
tp 2457716.710194952831
(2016-Nov-24.21019495)
9.5367e-05 TDB
period 2087.770183089834
5.72
2.6719e-05
7.315e-08
d
yr
n .1724327720147872 2.2068e-09 deg/d
Q 3.829356855361364 3.2672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      7115 days (19.48 yr)  
   first obs. used      1999-10-10  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5572  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:37:09  

Additional Information
 Earth MOID = 1.57108 au 
 Jupiter MOID = 1.63935 au 
 T_jup = 3.153 
[ 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 16.0   n/a MPO433636  
diameter diameter 3.844 km 0.981 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249664 (1999 VG42)          Discovered 1999-Nov-04 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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