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21896 (1999 VM6)
Classification: Main-belt Asteroid          SPK-ID: 2021896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1684561558552273 3.6859e-08  
a 3.180894452393391 1.879e-08 au
q 2.645053200761982 1.2238e-07 au
i 5.759897783333987 4.1411e-06 deg
node 118.7415755685962 3.4907e-05 deg
peri 238.2714076322576 3.6615e-05 deg
M 342.6770548611085 1.157e-05 deg
tp 2459496.210649259665
(2021-Oct-08.71064926)
6.6983e-05 TDB
period 2072.155366519651
5.67
1.836e-05
5.027e-08
d
yr
n .1737321466414213 1.5394e-09 deg/d
Q 3.7167357040248 2.1955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      981  
   data-arc span      10132 days (27.74 yr)  
   first obs. used      1993-11-11  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52706  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:46:13  

Additional Information
 Earth MOID = 1.64559 au 
 Jupiter MOID = 1.74605 au 
 T_jup = 3.169 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457153.5 (2015-May-11.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693807000037712 3.6614e-08  
q 2.638670255253682 1.2105e-07 au
tp 2457435.186445044691
(2016-Feb-16.68644504)
6.2626e-05 TDB
node 118.7709267341461 3.4929e-05 deg
peri 239.5273257780098 3.6666e-05 deg
i 5.759659785353869 4.1411e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      981  
   data-arc span      10132 days (27.74 yr)  
   first obs. used      1993-11-11  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52706  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:46:13  

Additional Information
 Jupiter MOID = 1.74605 au 
 T_jup = 3.169 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.340588755905895E-15 -4.399783072431006E-15 -5.073972202844651E-13 2.602924410328544E-15 -5.422765355964525E-14 3.489376792051933E-17
q -4.399783072431006E-15 1.465225470418343E-14 1.737061427972803E-12 -7.985513228212538E-15 1.839039598748944E-13 1.624900358380837E-16
tp -5.073972202844651E-13 1.737061427972803E-12 3.922075051697257E-9 -4.12924139500079E-12 7.095597243665783E-10 6.268928209325691E-13
node 2.602924410328544E-15 -7.985513228212538E-15 -4.12924139500079E-12 1.220055631781558E-9 -1.214350891453665E-9 1.403581607887124E-11
peri -5.422765355964525E-14 1.839039598748944E-13 7.095597243665783E-10 -1.214350891453665E-9 1.344373128454581E-9 -1.385999566805608E-11
i 3.489376792051933E-17 1.624900358380837E-16 6.268928209325691E-13 1.403581607887124E-11 -1.385999566805608E-11 1.714858575127572E-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 14.36   n/a MPO636392  
diameter diameter 8.109 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21896 (1999 VM6)          Discovered 1999-Nov-07 by Urata, T. at Oohira
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VM6 = 1995 AJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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