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48655 (1995 VQ12)
Classification: Main-belt Asteroid          SPK-ID: 2048655
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134915735472269 3.3975e-08  
a 2.255465858509541 7.4129e-09 au
q 1.999489489145246 7.6061e-08 au
i 7.483220771202291 4.0621e-06 deg
node 201.7619829729128 2.7462e-05 deg
peri 196.9389374266695 3.3002e-05 deg
M 90.06421535312839 1.8387e-05 deg
tp 2458690.970118055505
(2019-Jul-26.47011806)		 6.2748e-05 TDB
period 1237.236754499161
3.39		 6.0995e-06
1.67e-08		 d
yr
n .2909709873157864 1.4345e-09 deg/d
Q 2.511442227873836 8.2542e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1132  
   data-arc span      15178 days (41.56 yr)  
   first obs. used      1978-10-28  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:36:22  

Additional Information
 Earth MOID = 1.00762 au 
 Jupiter MOID = 2.8807 au 
 T_jup = 3.604 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456481.5 (2013-Jul-08.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136134065612782 3.4064e-08  
q 1.999156781206411 7.633e-08 au
tp 2456215.132447478767
(2012-Oct-14.63244748)		 6.0255e-05 TDB
node 201.8000032582499 2.7451e-05 deg
peri 196.5489357278684 3.2977e-05 deg
i 7.483683220084283 4.0642e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1132  
   data-arc span      15178 days (41.56 yr)  
   first obs. used      1978-10-28  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:36:22  

Additional Information
 Jupiter MOID = 2.8807 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.160364839455158E-15 -2.590650148055446E-15 -5.387389870454642E-13 5.910072137964332E-15 -1.68627504392921E-13 -2.859880578470365E-15
q -2.590650148055446E-15 5.826219212763021E-15 1.253815220652798E-12 -1.289252035089474E-14 3.933914255943138E-13 6.456939765693194E-15
tp -5.387389870454642E-13 1.253815220652798E-12 3.6306673569371E-9 1.81841726565621E-12 1.111891011165593E-9 2.107384378475696E-12
node 5.910072137964332E-15 -1.289252035089474E-14 1.81841726565621E-12 7.535780400228277E-10 -7.45962968865788E-10 -2.322955810299209E-11
peri -1.68627504392921E-13 3.933914255943138E-13 1.111891011165593E-9 -7.45962968865788E-10 1.087491183847953E-9 2.370642234701251E-11
i -2.859880578470365E-15 6.456939765693194E-15 2.107384378475696E-12 -2.322955810299209E-11 2.370642234701251E-11 1.651762978090529E-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 MPO452833  
diameter diameter 2.147 km 0.410 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.349   0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48655 (1995 VQ12)          Discovered 1995-Nov-15 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 VQ12 = 1978 UM8 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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