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160387 (2004 JS44)
Classification: Main-belt Asteroid          SPK-ID: 2160387
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0623893909151298 5.5497e-08  
a 2.296937945068259 1.0938e-08 au
q 2.1536333857056 1.279e-07 au
i 8.092320231260956 4.5669e-06 deg
node 96.40181401852924 3.8959e-05 deg
peri 128.3455173949959 5.2354e-05 deg
M 231.8024191590121 3.7293e-05 deg
tp 2459453.292942878842
(2021-Aug-26.79294288)
0.00013284 TDB
period 1271.517437123636
3.48
9.0826e-06
2.487e-08
d
yr
n .2831262784837416 2.0224e-09 deg/d
Q 2.440242504430918 1.1621e-08 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:19:16  

Additional Information
 Earth MOID = 1.15241 au 
 Jupiter MOID = 2.55751 au 
 T_jup = 3.578 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457114.5 (2015-Apr-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06234658568457911 5.5469e-08  
q 2.153610160768269 1.278e-07 au
tp 2456912.098356793966
(2014-Sep-11.59835679)
0.00012766 TDB
node 96.43630322097854 3.8982e-05 deg
peri 128.7796792572791 5.2419e-05 deg
i 8.090115505088599 4.5652e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:19:16  

Additional Information
 Jupiter MOID = 2.55751 au 
 T_jup = 3.578 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.076815332672382E-15 -7.066033004381455E-15 -1.98646488498922E-13 5.202481559049777E-15 -1.221113870007624E-13 7.712852617663547E-15
q -7.066033004381455E-15 1.633249461048972E-14 7.51035508240653E-13 -1.321560094146983E-14 3.654591275359004E-13 -1.743132934787446E-14
tp -1.98646488498922E-13 7.51035508240653E-13 1.629742764620043E-8 -1.63105368554902E-11 4.504427568685098E-9 -5.469267441474491E-13
node 5.202481559049777E-15 -1.321560094146983E-14 -1.63105368554902E-11 1.51960317557702E-9 -1.509172004448377E-9 -5.40802461136564E-11
peri -1.221113870007624E-13 3.654591275359004E-13 4.504427568685098E-9 -1.509172004448377E-9 2.747743749953255E-9 5.329569939272772E-11
i 7.712852617663547E-15 -1.743132934787446E-14 -5.469267441474491E-13 -5.40802461136564E-11 5.329569939272772E-11 2.084095410092458E-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 16.7   n/a MPO454061  

160387 (2004 JS44)          Discovered 2004-May-15 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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