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120742 (1997 VW1)
Classification: Main-belt Asteroid          SPK-ID: 2120742
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2191539207436177 8.9693e-08  
a 2.383077879612967 1.0893e-08 au
q 1.860817018858398 2.1699e-07 au
i 1.661579013198234 8.7528e-06 deg
node 211.5049033103615 0.00014179 deg
peri 188.0387001682255 0.00014319 deg
M 50.21877183130108 1.4681e-05 deg
tp 2458813.056939562689
(2019-Nov-25.55693956)
5.463e-05 TDB
period 1343.710714075496
3.68
9.2131e-06
2.522e-08
d
yr
n .267914809511427 1.8369e-09 deg/d
Q 2.905338740367535 1.328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      8121 days (22.23 yr)  
   first obs. used      1997-11-01  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:22:44  

Additional Information
 Earth MOID = .86873 au 
 Jupiter MOID = 2.51206 au 
 T_jup = 3.504 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457790.5 (2017-Feb-06.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2189993231712007 9.0445e-08  
q 1.861165265315204 2.1883e-07 au
tp 2457466.492843885191
(2016-Mar-18.99284388)
5.419e-05 TDB
node 211.5223166612042 0.00014195 deg
peri 187.4790648012673 0.00014334 deg
i 1.6585916812321 8.7597e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      304  
   data-arc span      8121 days (22.23 yr)  
   first obs. used      1997-11-01  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:22:44  

Additional Information
 Jupiter MOID = 2.51206 au 
 T_jup = 3.504 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.180237202319792E-15 -1.977970746482201E-14 -2.681227217171624E-12 4.122068534614847E-14 -1.024649086850907E-12 -3.519600207856159E-15
q -1.977970746482201E-14 4.788835422417526E-14 6.389669132463958E-12 -1.005087042226125E-13 2.452946202471298E-12 8.752848245714927E-15
tp -2.681227217171624E-12 6.389669132463958E-12 2.936605450915887E-9 -5.51913617640942E-12 1.083110475090402E-9 -7.584389963421529E-13
node 4.122068534614847E-14 -1.005087042226125E-13 -5.51913617640942E-12 2.014943903547648E-8 -2.014270022486579E-8 -1.776804157203701E-10
peri -1.024649086850907E-12 2.452946202471298E-12 1.083110475090402E-9 -2.014270022486579E-8 2.054697733760925E-8 1.773240218668676E-10
i -3.519600207856159E-15 8.752848245714927E-15 -7.584389963421529E-13 -1.776804157203701E-10 1.773240218668676E-10 7.673168861554876E-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 17.5   n/a MPO502802  

120742 (1997 VW1)          Discovered 1997-Nov-04 by Sarounova, L. at Ondrejov
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1997 VW1 = 2002 AK91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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