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12425 (1995 VG2)
Classification: Main-belt Asteroid          SPK-ID: 2012425
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403889799468064 3.7411e-08  
a 2.315476396854558 8.6911e-09 au
q 1.99040902740924 8.7386e-08 au
i 7.876288604319943 5.0142e-06 deg
node 27.32034796691433 2.7074e-05 deg
peri 304.2150125406949 3.2089e-05 deg
M 53.33390635995384 1.8077e-05 deg
tp 2458809.839881924239
(2019-Nov-22.33988192)
6.4449e-05 TDB
period 1286.941969786244
3.52
7.2458e-06
1.984e-08
d
yr
n .2797328927424713 1.575e-09 deg/d
Q 2.640543766299876 9.9112e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2414  
   data-arc span      9116 days (24.96 yr)  
   first obs. used      1995-11-12  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40648  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:53:03  

Additional Information
 Earth MOID = .993177 au 
 Jupiter MOID = 2.72876 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456503.5 (2013-Jul-30.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398458484597121 3.7276e-08  
q 1.992175408273228 8.6993e-08 au
tp 2456235.363099161182
(2012-Nov-03.86309916)
6.4521e-05 TDB
node 27.45572724495291 2.7046e-05 deg
peri 304.1219932714353 3.2152e-05 deg
i 7.880146496968523 5.0159e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2414  
   data-arc span      9116 days (24.96 yr)  
   first obs. used      1995-11-12  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40648  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:53:03  

Additional Information
 Jupiter MOID = 2.72876 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.389532171110245E-15 -3.230703070507244E-15 7.625771566307013E-13 2.200458656329957E-15 1.863777680788603E-13 9.457477028341578E-16
q -3.230703070507244E-15 7.567799150434978E-15 -1.800526595048853E-12 -4.784843304504207E-15 -4.380900650946047E-13 -2.091066616408523E-15
tp 7.625771566307013E-13 -1.800526595048853E-12 4.162984607237563E-9 -3.795577045868553E-12 1.131332759439274E-9 6.285794531053008E-14
node 2.200458656329957E-15 -4.784843304504207E-15 -3.795577045868553E-12 7.31493706360207E-10 -7.249362943730974E-10 5.741615218864767E-13
peri 1.863777680788603E-13 -4.380900650946047E-13 1.131332759439274E-9 -7.249362943730974E-10 1.033751161442968E-9 -5.636074448011962E-13
i 9.457477028341578E-16 -2.091066616408523E-15 6.285794531053008E-14 5.741615218864767E-13 -5.636074448011962E-13 2.515888520069385E-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 14.1   n/a MPO395122  
diameter diameter 4.730 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.198   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12425 (1995 VG2)          Discovered 1995-Nov-12 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 19991123/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2097-Jun-25 05:04 < 00:01 Hebe 0.0349543072071596 0.0349400026876202 0.0349686128234548 8.09278512462449 8.09278510264798 2487149.711058744 0.810486550245838 777.253837672271 25.4857129228168 -23.4314939031206 81806.2388214762 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:53:08 2020-Nov-13 02:53
2126-Jul-20 15:18 00:05 Amphi 0.0369727358770827 0.0369575045346156 0.0369879681996315 2.59759870979248 2.59759864993487 2497766.137696682 5.42689423420654 815.497928616965 35.0638720276703 21.5761544437601 58276.5372243387 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:53:08 2020-Nov-13 02:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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