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52313 (1991 VH9)
Classification: Main-belt Asteroid          SPK-ID: 2052313
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849474269316042 3.3316e-08  
a 2.253869657499086 7.947e-09 au
q 1.837022263705414 7.7133e-08 au
i 4.240411109911221 4.2599e-06 deg
node 193.5962019513331 5.0218e-05 deg
peri 77.79162564924934 5.2358e-05 deg
M 274.6155707026116 1.8996e-05 deg
tp 2459293.635084833074
(2021-Mar-20.13508483)
6.6236e-05 TDB
period 1235.923591786946
3.38
6.5367e-06
1.79e-08
d
yr
n .2912801425527431 1.5406e-09 deg/d
Q 2.670717051292757 9.4168e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      10425 days (28.54 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:21:16  

Additional Information
 Earth MOID = .826734 au 
 Jupiter MOID = 2.43577 au 
 T_jup = 3.599 
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Orbital Elements at Epoch 2456912.5 (2014-Sep-12.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1852669723104947 3.3245e-08  
q 1.836417287747453 7.6977e-08 au
tp 2456821.731605591761
(2014-Jun-13.23160559)
5.8372e-05 TDB
node 193.6208581430863 5.0233e-05 deg
peri 77.82162175467515 5.2373e-05 deg
i 4.239239794418081 4.2602e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      10425 days (28.54 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:21:16  

Additional Information
 Jupiter MOID = 2.43577 au 
 T_jup = 3.599 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.105253437287793E-15 -2.550848158030544E-15 -3.543828384529151E-13 -2.640845091316656E-15 -6.829186104855518E-14 8.372216295015966E-16
q -2.550848158030544E-15 5.925407244788979E-15 9.961477335832203E-13 7.013563843668864E-15 2.027038741873169E-13 -1.696945177655546E-15
tp -3.543828384529151E-13 9.961477335832203E-13 3.407259621225282E-9 2.224735737667001E-11 8.763980388919495E-10 1.150443137655832E-12
node -2.640845091316656E-15 7.013563843668864E-15 2.224735737667001E-11 2.523382159786266E-9 -2.510397854887697E-9 -3.891407564066482E-11
peri -6.829186104855518E-14 2.027038741873169E-13 8.763980388919495E-10 -2.510397854887697E-9 2.742892110535331E-9 3.916011408986255E-11
i 8.372216295015966E-16 -1.696945177655546E-15 1.150443137655832E-12 -3.891407564066482E-11 3.916011408986255E-11 1.81494622009905E-11

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 15.5   n/a MPO459208  
diameter diameter 1.740 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.255   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52313 (1991 VH9)          Discovered 1991-Nov-04 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 VH9 = 1991 VU12 = 2000 DH75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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