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11985 (1995 VG)
Classification: Main-belt Asteroid          SPK-ID: 2011985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04936184524190296 3.1133e-08  
a 2.758627318477973 1.1296e-08 au
q 2.622456383703178 8.5808e-08 au
i 1.940407762234724 3.5141e-06 deg
node 282.2357934826374 0.0001293 deg
peri 173.8701920337278 0.00013777 deg
M 98.09464246414211 4.6786e-05 deg
tp 2458544.483282916186
(2019-Mar-01.98328292)
0.00021732 TDB
period 1673.547239954341
4.58
1.028e-05
2.815e-08
d
yr
n .215111943902953 1.3213e-09 deg/d
Q 2.894798253252769 1.1854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2463  
   data-arc span      14144 days (38.72 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:55:57  

Additional Information
 Earth MOID = 1.63928 au 
 Jupiter MOID = 2.18475 au 
 T_jup = 3.340 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456849.5 (2014-Jul-11.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04929711057804149 3.1246e-08  
q 2.623829535477266 8.6223e-08 au
tp 2456881.447210590213
(2014-Aug-11.94721059)
0.00021647 TDB
node 282.3513615185582 0.00012902 deg
peri 176.3156067374283 0.00013743 deg
i 1.942709577293862 3.5167e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2463  
   data-arc span      14144 days (38.72 yr)  
   first obs. used      1981-10-23  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:55:57  

Additional Information
 Jupiter MOID = 2.18475 au 
 T_jup = 3.340 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.762984205144474E-16 -2.673205697202447E-15 6.033092493581798E-14 -2.439462012123037E-15 4.147528588579245E-15 -4.977690220427596E-18
q -2.673205697202447E-15 7.434328299450913E-15 -2.532874157329014E-13 7.33974857782895E-15 -3.204899266312812E-14 5.192742011930579E-17
tp 6.033092493581798E-14 -2.532874157329014E-13 4.686037019191127E-8 1.005325817560967E-11 1.027994421401455E-8 -1.326854832977352E-12
node -2.439462012123037E-15 7.33974857782895E-15 1.005325817560967E-11 1.664493191826501E-8 -1.663280295616879E-8 2.807027879299741E-11
peri 4.147528588579245E-15 -3.204899266312812E-14 1.027994421401455E-8 -1.663280295616879E-8 1.888825302220548E-8 -2.83468026325071E-11
i -4.977690220427596E-18 5.192742011930579E-17 -1.326854832977352E-12 2.807027879299741E-11 -2.83468026325071E-11 1.23673480727591E-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 13.2   n/a MPO384863  
diameter diameter 7.647 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 36.314 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.191   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11985 (1995 VG)          Discovered 1995-Nov-01 by Kobayashi, T. at Oizumi
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 VG = 1981 UP14 = 1986 WJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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