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27990 (1997 VD6)
Classification: Main-belt Asteroid          SPK-ID: 2027990
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04510747837170909 5.1418e-08  
a 3.046875178163824 1.7368e-08 au
q 2.909438321963501 1.6247e-07 au
i 10.61286391620076 3.7716e-06 deg
node 80.1906160521841 2.6964e-05 deg
peri 82.86229457443895 5.5027e-05 deg
M 1.033277752685716 4.5753e-05 deg
tp 2458994.924356482901
(2020-May-25.42435648)
0.00024689 TDB
period 1942.586744888815
5.32
1.6609e-05
4.547e-08
d
yr
n .1853199096242185 1.5845e-09 deg/d
Q 3.184312034364146 1.8151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1827  
   data-arc span      8207 days (22.47 yr)  
   first obs. used      1997-11-09  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:25:01  

Additional Information
 Earth MOID = 1.94246 au 
 Jupiter MOID = 1.88283 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456943.5 (2014-Oct-13.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04740227368230826 5.1225e-08  
q 2.904739820015457 1.6259e-07 au
tp 2457052.141996920025
(2015-Jan-29.64199692)
0.00023727 TDB
node 80.25397832248724 2.6948e-05 deg
peri 82.82634292594048 5.3003e-05 deg
i 10.61449747098623 3.7723e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1827  
   data-arc span      8207 days (22.47 yr)  
   first obs. used      1997-11-09  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50077  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:25:01  

Additional Information
 Jupiter MOID = 1.88283 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.623949432886017E-15 -8.2896340066659E-15 2.804969363746024E-12 -1.501731123849204E-15 6.072271512924257E-13 -4.181966916925008E-15
q -8.2896340066659E-15 2.64360194286313E-14 -9.275991653969496E-12 5.920984559614961E-15 -2.005151392441727E-12 1.328919990063644E-14
tp 2.804969363746024E-12 -9.275991653969496E-12 5.629753085712157E-8 -5.969913664640724E-12 1.08649388138495E-8 -3.403284994781964E-12
node -1.501731123849204E-15 5.920984559614961E-15 -5.969913664640724E-12 7.262076462729309E-10 -7.147872039015045E-10 5.931220241908416E-12
peri 6.072271512924257E-13 -2.005151392441727E-12 1.08649388138495E-8 -7.147872039015045E-10 2.809318502910471E-9 -6.585844736531305E-12
i -4.181966916925008E-15 1.328919990063644E-14 -3.403284994781964E-12 5.931220241908416E-12 -6.585844736531305E-12 1.422998699574816E-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 13.0   n/a MPO344520  
diameter diameter 9.389 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27990 (1997 VD6)          Discovered 1997-Nov-09 by Kobayashi, T. at Oizumi
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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