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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137451634735877 3.2835e-08  
a 2.254884475643176 6.8175e-09 au
q 1.998402272347088 7.4098e-08 au
i 7.484546573207974 3.7814e-06 deg
node 201.7582055508365 2.2101e-05 deg
peri 196.8512714995269 2.6611e-05 deg
M 205.4066741128759 1.6804e-05 deg
tp 2459927.596099178925
(2022-Dec-14.09609918)
5.919e-05 TDB
period 1236.758408600469
3.39
5.6089e-06
1.536e-08
d
yr
n .2910835273053697 1.3201e-09 deg/d
Q 2.511366678939264 7.5929e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1337  
   data-arc span      15573 days (42.64 yr)  
   first obs. used      1978-10-28  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52395  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:55:15  

Additional Information
 Earth MOID = 1.00585 au 
 Jupiter MOID = 2.88263 au 
 T_jup = 3.604 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457186.5 (2015-Jun-13.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1133184515437349 3.2848e-08  
q 1.999984821210612 7.4155e-08 au
tp 2457451.589620692248
(2016-Mar-04.08962069)
5.3171e-05 TDB
node 201.784834168351 2.2097e-05 deg
peri 196.376070207209 2.6638e-05 deg
i 7.483305591209526 3.7818e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1337  
   data-arc span      15573 days (42.64 yr)  
   first obs. used      1978-10-28  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52395  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 07:55:15  

Additional Information
 Jupiter MOID = 2.88263 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.079010083525439E-15 -2.427671463150527E-15 -2.398319633549361E-13 -1.005524456838093E-15 -6.417638984248148E-14 -1.818956587077034E-15
q -2.427671463150527E-15 5.498911755261342E-15 6.983040607280478E-13 2.646393582683021E-15 1.860266870114812E-13 4.239191444350693E-15
tp -2.398319633549361E-13 6.983040607280478E-13 2.827165472894514E-9 1.939148234909814E-12 7.964903579711422E-10 1.247945993840453E-12
node -1.005524456838093E-15 2.646393582683021E-15 1.939148234909814E-12 4.882874539124518E-10 -4.832304976500832E-10 2.168898368298712E-13
peri -6.417638984248148E-14 1.860266870114812E-13 7.964903579711422E-10 -4.832304976500832E-10 7.095685850536535E-10 1.538662336079091E-13
i -1.818956587077034E-15 4.239191444350693E-15 1.247945993840453E-12 2.168898368298712E-13 1.538662336079091E-13 1.430207351993896E-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 15.35   n/a MPO614063  
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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