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JPL Small-Body Database Browser
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97981 (2000 QH171)
Classification: Main-belt Asteroid          SPK-ID: 2097981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09939627599942392 4.6077e-08  
a 2.260462254586618 9.3261e-09 au
q 2.035780724443446 1.047e-07 au
i 4.303840328252228 4.0001e-06 deg
node 304.7378665364597 6.0683e-05 deg
peri 252.3287271941019 6.3305e-05 deg
M 78.12740021428597 1.8324e-05 deg
tp 2458731.101490683825
(2019-Sep-04.60149068)
6.2983e-05 TDB
period 1241.350193246148
3.40
7.6822e-06
2.103e-08
d
yr
n .2900068022373242 1.7947e-09 deg/d
Q 2.485143784729789 1.0253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      846  
   data-arc span      7326 days (20.06 yr)  
   first obs. used      1999-04-11  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57022  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:26:59  

Additional Information
 Earth MOID = 1.0391 au 
 Jupiter MOID = 2.49143 au 
 T_jup = 3.610 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456893.5 (2014-Aug-24.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09949326255276844 4.5987e-08  
q 2.03460893215739 1.0445e-07 au
tp 2457489.927441901816
(2016-Apr-11.42744190)
6.2528e-05 TDB
node 304.7852437261373 6.0668e-05 deg
peri 252.1820721407506 6.3293e-05 deg
i 4.30511933099109 4.0006e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      846  
   data-arc span      7326 days (20.06 yr)  
   first obs. used      1999-04-11  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57022  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:26:59  

Additional Information
 Jupiter MOID = 2.49143 au 
 T_jup = 3.610 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.114815051001345E-15 -4.787973294368196E-15 -3.126369943942559E-13 -1.249608519221679E-15 -4.414552951190163E-14 -1.073384925433485E-15
q -4.787973294368196E-15 1.091041494801523E-14 7.015048765078937E-13 3.309756723102284E-15 8.728536558598203E-14 2.5879139779561E-15
tp -3.126369943942559E-13 7.015048765078937E-13 3.909749731272918E-9 1.168359730192777E-11 1.144844217507352E-9 3.540534408222601E-13
node -1.249608519221679E-15 3.309756723102284E-15 1.168359730192777E-11 3.680642189292981E-9 -3.66658362819156E-9 6.820611973648157E-11
peri -4.414552951190163E-14 8.728536558598203E-14 1.144844217507352E-9 -3.66658362819156E-9 4.006033022383965E-9 -6.794807736568876E-11
i -1.073384925433485E-15 2.5879139779561E-15 3.540534408222601E-13 6.820611973648157E-11 -6.794807736568876E-11 1.600508216229893E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO366351  

97981 (2000 QH171)          Discovered 2000-Aug-31 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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