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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700367825185191 8.5912e-08  
a 2.316612178402149 9.7546e-09 au
q 1.92270289724343 2.0227e-07 au
i 24.94637655882161 9.0373e-06 deg
node 220.1444943559745 1.0932e-05 deg
peri 349.0394981205775 2.0434e-05 deg
M 103.6581834621273 1.5108e-05 deg
tp 2458629.666019709306
(2019-May-26.16601971)
5.3275e-05 TDB
period 1287.888987109499
3.53
8.1344e-06
2.227e-08
d
yr
n .2795271980762671 1.7655e-09 deg/d
Q 2.710521459560868 1.1413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      8136 days (22.28 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:04:26  

Additional Information
 Earth MOID = .918966 au 
 Jupiter MOID = 2.2744 au 
 T_jup = 3.438 
[ show covariance matrix ]

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1996-Dec-17 18:46 < 00:01 David 0.0391437450581456 0.0391414905932789 0.0391459997720346 11.1985792469588 11.1985792124954 2450435.282196748 0.42494607275109 201.065285598199 40.2171503367631 57.8010978014231 124167.246538432 T 17 CATAB v2.0f-lin.ifort 2020-Aug-25 09:04:44 2020-Aug-25 09:04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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