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100850 (1998 HV31)
Classification: Main-belt Asteroid          SPK-ID: 2100850
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700367856560898 8.7303e-08  
a 2.316612178226691 9.827e-09 au
q 1.922702889829272 2.0561e-07 au
i 24.94637536157668 9.1363e-06 deg
node 220.1444942288242 1.0935e-05 deg
peri 349.0394988301355 2.0555e-05 deg
M 103.6581831149057 1.5133e-05 deg
tp 2458629.666020993611
(2019-May-26.16602099)
5.3384e-05 TDB
period 1287.888986963184
3.53
8.1948e-06
2.244e-08
d
yr
n .2795271981080237 1.7786e-09 deg/d
Q 2.71052146662411 1.1498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      7743 days (21.20 yr)  
   first obs. used      1998-04-22  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:11  

Additional Information
 Earth MOID = .918966 au 
 Jupiter MOID = 2.2744 au 
 T_jup = 3.438 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456765.5 (2014-Apr-18.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700283323959687 8.7306e-08  
q 1.922420040148056 2.0542e-07 au
tp 2457341.244065859226
(2015-Nov-14.74406586)
5.1461e-05 TDB
node 220.2078152619334 1.0935e-05 deg
peri 348.9908804473941 2.0551e-05 deg
i 24.95174161787904 9.1366e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      7743 days (21.20 yr)  
   first obs. used      1998-04-22  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59701  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:12:11  

Additional Information
 Jupiter MOID = 2.2744 au 
 T_jup = 3.438 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.622269375476668E-15 -1.792292576325299E-14 -4.681163809883366E-13 4.240969771905529E-14 2.222463941612765E-14 -3.334206440031601E-14
q -1.792292576325299E-14 4.219902668203639E-14 1.150155140728844E-12 -9.956480340600545E-14 -4.650646074290889E-14 7.928848307462961E-14
tp -4.681163809883366E-13 1.150155140728844E-12 2.648269349454455E-9 -1.110738620942448E-11 8.952921729808433E-10 1.662578548239102E-11
node 4.240969771905529E-14 -9.956480340600545E-14 -1.110738620942448E-11 1.19579134419981E-10 -1.101459278702935E-10 -2.911728102282422E-11
peri 2.222463941612765E-14 -4.650646074290889E-14 8.952921729808433E-10 -1.101459278702935E-10 4.223350316270845E-10 3.120885957619498E-11
i -3.334206440031601E-14 7.928848307462961E-14 1.662578548239102E-11 -2.911728102282422E-11 3.120885957619498E-11 8.347733123355749E-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 15.6   n/a MPO474883  

100850 (1998 HV31)          Discovered 1998-Apr-22 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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