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70857 (1999 VH122)
Classification: Main-belt Asteroid          SPK-ID: 2070857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03669855447812632 3.9296e-08  
a 2.730348926713286 1.6859e-08 au
q 2.630149067882005 1.0523e-07 au
i 5.325341118338029 4.3356e-06 deg
node 75.80384973017978 5.1366e-05 deg
peri 66.16793729657562 8.5426e-05 deg
M 118.1611755489347 6.7796e-05 deg
tp 2458459.623694581990
(2018-Dec-07.12369458)
0.00030949 TDB
period 1647.880270705711
4.51
1.5262e-05
4.179e-08
d
yr
n .2184624735180722 2.0234e-09 deg/d
Q 2.830548785544568 1.7477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      8036 days (22.00 yr)  
   first obs. used      1997-04-07  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55749  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:17:49  

Additional Information
 Earth MOID = 1.64861 au 
 Jupiter MOID = 2.16711 au 
 T_jup = 3.347 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO337796  
diameter diameter 2.577 km 0.687 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.184   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70857 (1999 VH122)          Discovered 1999-Nov-04 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VH122 = 1997 KD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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