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85125 (1978 VU8)
Classification: Main-belt Asteroid          SPK-ID: 2085125
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027839541172478 1.489e-07  
a 2.528840922367291 9.9924e-09 au
q 2.016032560796143 3.812e-07 au
i 2.45074753610302 5.951e-06 deg
node 82.24926164493546 0.00016671 deg
peri 352.4482199517201 0.00017273 deg
M 113.1322180085217 4.7011e-05 deg
tp 2458538.901388282885
(2019-Feb-24.40138828)
0.00019001 TDB
period 1468.860976504889
4.02
8.706e-06
2.384e-08
d
yr
n .2450878645143186 1.4526e-09 deg/d
Q 3.041649283938438 1.2019e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      15148 days (41.47 yr)  
   first obs. used      1978-11-05  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52229  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:33:45  

Additional Information
 Earth MOID = 1.03114 au 
 Jupiter MOID = 2.23259 au 
 T_jup = 3.422 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456948.5 (2014-Oct-18.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015951321413172 1.4717e-07  
q 2.019707163654048 3.7574e-07 au
tp 2457070.537808124017
(2015-Feb-17.03780812)
0.00018709 TDB
node 82.2930478899674 0.0001666 deg
peri 352.7333307372401 0.00017274 deg
i 2.450662559974892 5.9473e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      15148 days (41.47 yr)  
   first obs. used      1978-11-05  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52229  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:33:45  

Additional Information
 Jupiter MOID = 2.23259 au 
 T_jup = 3.422 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.165802524211706E-14 -5.52877214058742E-14 -2.696402476707968E-11 -9.660880425467768E-13 -6.688295516472531E-12 1.527056348791993E-14
q -5.52877214058742E-14 1.411780732449672E-13 6.891440755632138E-11 2.468679504787395E-12 1.709191304190319E-11 -3.902491731184519E-14
tp -2.696402476707968E-11 6.891440755632138E-11 3.500156591638862E-8 1.229204938264929E-9 8.718602947539523E-9 -1.953496389460706E-11
node -9.660880425467768E-13 2.468679504787395E-12 1.229204938264929E-9 2.775401189171656E-8 -2.737962481349073E-8 -8.404705083510499E-10
peri -6.688295516472531E-12 1.709191304190319E-11 8.718602947539523E-9 -2.737962481349073E-8 2.983901740174868E-8 8.341641176521223E-10
i 1.527056348791993E-14 -3.902491731184519E-14 -1.953496389460706E-11 -8.404705083510499E-10 8.341641176521223E-10 3.53702490715312E-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 15.7   n/a MPO468820  

85125 (1978 VU8)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1978 VU8 = 1998 XS1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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