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20465 Vervack (1999 MJ1)
Classification: Main-belt Asteroid          SPK-ID: 2020465
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542613875553319 3.4411e-08  
a 2.383081680045458 8.8361e-09 au
q 2.015464193423954 8.4097e-08 au
i 7.64298541467054 3.8062e-06 deg
node 115.2066919372376 2.7917e-05 deg
peri 155.7962999084195 3.0521e-05 deg
M 272.5840890283686 1.4217e-05 deg
tp 2459326.783269827307
(2021-Apr-22.28326983)
5.3876e-05 TDB
period 1343.713928416875
3.68
7.4734e-06
2.046e-08
d
yr
n .2679141686237796 1.4901e-09 deg/d
Q 2.750699166666962 1.0199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1550  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1994-01-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51134  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:12:44  

Additional Information
 Earth MOID = 1.00187 au 
 Jupiter MOID = 2.36204 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456993.5 (2014-Dec-02.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1549575996706531 3.4349e-08  
q 2.01356262078405 8.4007e-08 au
tp 2456639.037698008775
(2013-Dec-12.53769801)
4.8609e-05 TDB
node 115.2560406210044 2.7906e-05 deg
peri 155.7274334214366 3.049e-05 deg
i 7.644919207467667 3.8074e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1550  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1994-01-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51134  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:12:44  

Additional Information
 Jupiter MOID = 2.36204 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.17987016154781E-15 -2.874912445340247E-15 -2.151951602345967E-13 -5.959140543511079E-15 -4.329005724001439E-14 -5.00375471397478E-16
q -2.874912445340247E-15 7.057184292864808E-15 5.852778059030208E-13 1.486248873728484E-14 1.224675656180511E-13 1.40883853237292E-15
tp -2.151951602345967E-13 5.852778059030208E-13 2.362803454503429E-9 7.274272063688187E-12 6.108159707508108E-10 -4.584024348129968E-13
node -5.959140543511079E-15 1.486248873728484E-14 7.274272063688187E-12 7.787205335181377E-10 -7.694854311995169E-10 -3.171356099542473E-12
peri -4.329005724001439E-14 1.224675656180511E-13 6.108159707508108E-10 -7.694854311995169E-10 9.296416185215698E-10 3.034845198057697E-12
i -5.00375471397478E-16 1.40883853237292E-15 -4.584024348129968E-13 -3.171356099542473E-12 3.034845198057697E-12 1.44959740635868E-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 14.7   n/a MPO459007  
diameter diameter 3.376 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.140 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 0.190   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20465 Vervack           Discovered 1999 June 20 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Ronald J. Vervack, Jr. (b. 1966), of Johns Hopkins University Applied Physics Laboratory, has advanced the understanding of processes occurring in planetary atmospheres and cometary comae.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080718/MPCPages.arcLast Updated: 2008-07-18

[ show close-approach data ]
Alternate Designations
 1999 MJ1 = 1996 VS9 = 1998 DR10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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