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393804 (2005 QH71)
Classification: Mars-crossing Asteroid          SPK-ID: 2393804
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3152065158832119 5.0314e-08  
a 2.208147173968065 6.9043e-09 au
q 1.512124796704231 1.1373e-07 au
i 3.989159935878174 4.3791e-06 deg
node 178.9998530303709 6.0807e-05 deg
peri 160.5329906096716 6.1587e-05 deg
M 187.8345432873618 8.2381e-06 deg
tp 2459573.670683462616
(2021-Dec-25.17068346)
2.856e-05 TDB
period 1198.506657412392
3.28
5.6211e-06
1.539e-08
d
yr
n .3003738008241436 1.4088e-09 deg/d
Q 2.904169551231899 9.0806e-09 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      4821 days (13.20 yr)  
   first obs. used      2005-08-03  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48471  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:10:37  

Additional Information
 Earth MOID = .504384 au 
 Jupiter MOID = 2.50813 au 
 T_jup = 3.590 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457205.5 (2015-Jul-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3163338299236393 5.0435e-08  
q 1.509409257502833 1.1402e-07 au
tp 2457175.988122347876
(2015-Jun-02.48812235)
2.4835e-05 TDB
node 179.0348144634941 6.0799e-05 deg
peri 160.4156916041771 6.1559e-05 deg
i 3.98887582289956 4.3826e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      4821 days (13.20 yr)  
   first obs. used      2005-08-03  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48471  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:10:37  

Additional Information
 Jupiter MOID = 2.50813 au 
 T_jup = 3.590 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.543683434761797E-15 -5.747108340631922E-15 -5.398194798218977E-13 -1.178409081875135E-13 -2.257101840212061E-13 -9.776587423281268E-15
q -5.747108340631922E-15 1.300028280112072E-14 1.201788176674085E-12 2.656090284041728E-13 5.033105078291833E-13 2.216307018773571E-14
tp -5.398194798218977E-13 1.201788176674085E-12 6.167765554483174E-10 4.954497965992015E-11 2.599392749216648E-10 1.036524794328596E-12
node -1.178409081875135E-13 2.656090284041728E-13 4.954497965992015E-11 3.69649775805459E-9 -3.658879065658728E-9 -2.458339476236274E-11
peri -2.257101840212061E-13 5.033105078291833E-13 2.599392749216648E-10 -3.658879065658728E-9 3.789507301339382E-9 2.545045514945584E-11
i -9.776587423281268E-15 2.216307018773571E-14 1.036524794328596E-12 -2.458339476236274E-11 2.545045514945584E-11 1.920716039788835E-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 17.5   n/a MPO455792  

393804 (2005 QH71)          Discovered 2005-Aug-03 by LINEAR at Socorro
Reference: Last Updated: 2014-05-15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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