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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700367837934966 7.61e-08  
a 2.316612178168524 9.202e-09 au
q 1.922702894095902 1.7854e-07 au
i 24.94637972121927 8.2393e-06 deg
node 220.1444948139013 1.0907e-05 deg
peri 349.0394993491627 1.9143e-05 deg
M 103.6581823792173 1.4756e-05 deg
tp 2458629.666023639480
(2019-May-26.16602364)
5.1825e-05 TDB
period 1287.888986914679
3.53
7.6736e-06
2.101e-08
d
yr
n .2795271981185515 1.6655e-09 deg/d
Q 2.710521462241147 1.0767e-08 au
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      8188 days (22.42 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:37:11  

Additional Information
 Earth MOID = .918966 au 
 Jupiter MOID = 2.2744 au 
 T_jup = 3.438 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457036.5 (2015-Jan-14.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1699352085603188 7.614e-08  
q 1.923110254096309 1.7861e-07 au
tp 2457341.047998821612
(2015-Nov-14.54799882)
4.9083e-05 TDB
node 220.199774454539 1.0909e-05 deg
peri 348.9106290872678 1.9123e-05 deg
i 24.94782544406895 8.2391e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      8188 days (22.42 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:37:11  

Additional Information
 Jupiter MOID = 2.2744 au 
 T_jup = 3.438 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.797298122592991E-15 -1.35882899763654E-14 -1.095835004182973E-12 3.737528067828325E-14 -2.92580927691701E-13 -6.972382654103514E-15
q -1.35882899763654E-14 3.190300396229339E-14 2.64975344018765E-12 -8.682987102946854E-14 7.040180181769719E-13 1.60173814199735E-14
tp -1.095835004182973E-12 2.64975344018765E-12 2.409153274664301E-9 -1.561759713896742E-11 7.798875988110174E-10 9.65642013869792E-12
node 3.737528067828325E-14 -8.682987102946854E-14 -1.561759713896742E-11 1.190008784134603E-10 -1.116521380273115E-10 -3.141525833568087E-11
peri -2.92580927691701E-13 7.040180181769719E-13 7.798875988110174E-10 -1.116521380273115E-10 3.65680751164344E-10 3.177426389002624E-11
i -6.972382654103514E-15 1.60173814199735E-14 9.65642013869792E-12 -3.141525833568087E-11 3.177426389002624E-11 6.788210187044461E-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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