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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456713.5 (2014-Feb-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03862522728908929 3.8984e-08  
q 2.625253080318636 1.0497e-07 au
tp 2456807.042130672051
(2014-May-29.54213067)
0.00029371 TDB
node 75.84245298231271 5.1319e-05 deg
peri 64.75738489027999 8.3006e-05 deg
i 5.32780700211751 4.3379e-06 deg
  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
 Jupiter MOID = 2.16711 au 
 T_jup = 3.347 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.519786244835585E-15 -4.042638631457355E-15 2.293757626221511E-12 -5.23296602049034E-15 4.848696757505038E-13 -6.61791583465923E-16
q -4.042638631457355E-15 1.101821371519927E-14 -5.682127596112816E-12 1.439400561997055E-14 -1.203194071916078E-12 1.825933790935972E-15
tp 2.293757626221511E-12 -5.682127596112816E-12 8.626778518715969E-8 -1.035236160392974E-10 1.919054206684817E-8 -9.365120000084233E-12
node -5.23296602049034E-15 1.439400561997055E-14 -1.035236160392974E-10 2.633658629463056E-9 -2.64494083796459E-9 -4.92301722510282E-11
peri 4.848696757505038E-13 -1.203194071916078E-12 1.919054206684817E-8 -2.64494083796459E-9 6.890050888455186E-9 4.694747927450691E-11
i -6.61791583465923E-16 1.825933790935972E-15 -9.365120000084233E-12 -4.92301722510282E-11 4.694747927450691E-11 1.881705259622912E-11

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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