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181740 (1995 VX8)
Classification: Main-belt Asteroid          SPK-ID: 2181740
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09718818978197905 5.4806e-08  
a 3.054143552803337 2.8519e-08 au
q 2.757316869572078 1.6773e-07 au
i .8345661246371496 6.1267e-06 deg
node 218.1949289924153 0.00030645 deg
peri 171.305675232238 0.00030743 deg
M 279.5859097070535 2.8149e-05 deg
tp 2459635.974018120472
(2022-Feb-25.47401812)
0.00015617 TDB
period 1949.542001311693
5.34
2.7307e-05
7.476e-08
d
yr
n .1846587556245438 2.5865e-09 deg/d
Q 3.350970236034595 3.1291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      8579 days (23.49 yr)  
   first obs. used      1995-11-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58536  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:50  

Additional Information
 Earth MOID = 1.76114 au 
 Jupiter MOID = 2.06845 au 
 T_jup = 3.229 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457117.5 (2015-Apr-05.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09995983487988785 5.4515e-08  
q 2.74342299945255 1.6648e-07 au
tp 2457698.068823935178
(2016-Nov-05.56882393)
0.00013806 TDB
node 218.4055598555784 0.00030587 deg
peri 172.5744571772157 0.00030681 deg
i .8359045643157506 6.1358e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      8579 days (23.49 yr)  
   first obs. used      1995-11-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58536  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:50  

Additional Information
 Jupiter MOID = 2.06845 au 
 T_jup = 3.229 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.971893677099761E-15 -8.970348810056685E-15 2.669733444606239E-14 -3.632108548378663E-15 -2.319821700362495E-14 1.151997309786674E-16
q -8.970348810056685E-15 2.771536562680985E-14 1.555846155081324E-12 1.094045409336251E-14 3.193618238615238E-13 -3.989990727953449E-16
tp 2.669733444606239E-14 1.555846155081324E-12 1.906065087522278E-8 -1.331779997530552E-11 3.328439796113048E-9 2.289072044419456E-13
node -3.632108548378663E-15 1.094045409336251E-14 -1.331779997530552E-11 9.355628381957377E-8 -9.354839805822125E-8 -3.266816859985462E-10
peri -2.319821700362495E-14 3.193618238615238E-13 3.328439796113048E-9 -9.354839805822125E-8 9.413285589978672E-8 3.266862416464229E-10
i 1.151997309786674E-16 -3.989990727953449E-16 2.289072044419456E-13 -3.266816859985462E-10 3.266862416464229E-10 3.764760931399193E-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 15.9   n/a MPO469956  

181740 (1995 VX8)          Discovered 1995-Nov-14 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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