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21199 (1994 PV8)
Classification: Main-belt Asteroid          SPK-ID: 2021199
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .11940750997187 2.8325e-08  
a 2.285788078660842 6.8193e-09 au
q 2.012847815864566 6.5127e-08 au
i 5.26141864993148 3.3011e-06 deg
node 147.017838272582 3.7006e-05 deg
peri 306.2133406580207 4.0046e-05 deg
M 168.6822688127621 1.5156e-05 deg
tp 2458805.048272136272
(2019-Nov-17.54827214)
5.2915e-05 TDB
period 1262.270323547088
3.46
5.6487e-06
1.547e-08
d
yr
n .2852003990621985 1.2763e-09 deg/d
Q 2.558728341457118 7.6336e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1376  
   data-arc span      9853 days (26.98 yr)  
   first obs. used      1994-08-10  
   last obs. used      2021-08-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52544  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:41:14  

Additional Information
 Earth MOID = 1.03487 au 
 Jupiter MOID = 2.58903 au 
 T_jup = 3.587 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457021.5 (2014-Dec-30.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186869357183015 2.8287e-08  
q 2.015123971691467 6.5026e-08 au
tp 2457542.763636073260
(2016-Jun-03.26363607)
5.3419e-05 TDB
node 147.0624962215706 3.6985e-05 deg
peri 306.2983391309869 4.007e-05 deg
i 5.261893122444161 3.3019e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1376  
   data-arc span      9853 days (26.98 yr)  
   first obs. used      1994-08-10  
   last obs. used      2021-08-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52544  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:41:14  

Additional Information
 Jupiter MOID = 2.58903 au 
 T_jup = 3.587 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.001276970949651E-16 -1.831336951133951E-15 -4.800558971764133E-14 1.159188225194888E-16 -2.642246754063909E-14 5.888779083310549E-16
q -1.831336951133951E-15 4.228324510347022E-15 9.049372240434444E-14 -5.971109087185559E-17 5.055257222922731E-14 -1.286188340439315E-15
tp -4.800558971764133E-14 9.049372240434444E-14 2.8535388845271E-9 -1.637033442581585E-11 8.336235791466619E-10 -5.466101318677258E-13
node 1.159188225194888E-16 -5.971109087185559E-17 -1.637033442581585E-11 1.367911123237507E-9 -1.36642868355911E-9 1.410961567608776E-11
peri -2.642246754063909E-14 5.055257222922731E-14 8.336235791466619E-10 -1.36642868355911E-9 1.60560222979222E-9 -1.42371513901205E-11
i 5.888779083310549E-16 -1.286188340439315E-15 -5.466101318677258E-13 1.410961567608776E-11 -1.42371513901205E-11 1.090268006719487E-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 15.34   n/a E2021B10  
diameter diameter 2.133 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 20.115 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.245   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21199 (1994 PV8)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PV8 = 2000 KT60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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