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78338 (2002 PR88)
Classification: Main-belt Asteroid          SPK-ID: 2078338
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899533277921231 4.3675e-08  
a 2.570052925359767 1.1009e-08 au
q 2.081862819585798 1.1517e-07 au
i 4.43809258644584 4.1955e-06 deg
node 55.06203628694725 4.8138e-05 deg
peri 33.01791705584417 4.901e-05 deg
M 72.81329601919447 8.5675e-06 deg
tp 2458896.117473858639
(2020-Feb-16.61747386)
3.5431e-05 TDB
period 1504.913462261122
4.12
9.6694e-06
2.647e-08
d
yr
n .2392164127890135 1.537e-09 deg/d
Q 3.058243031133736 1.31e-08 au
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      8205 days (22.46 yr)  
   first obs. used      1998-09-27  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51845  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:18  

Additional Information
 Earth MOID = 1.09953 au 
 Jupiter MOID = 2.16597 au 
 T_jup = 3.400 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457317.5 (2015-Oct-22.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1880173424382563 4.3694e-08  
q 2.08740619544714 1.15e-07 au
tp 2457391.183332282796
(2016-Jan-03.68333228)
3.5798e-05 TDB
node 55.0974873732747 4.8178e-05 deg
peri 33.15167462411097 4.9074e-05 deg
i 4.436496097845137 4.1906e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      8205 days (22.46 yr)  
   first obs. used      1998-09-27  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51845  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:18  

Additional Information
 Jupiter MOID = 2.16597 au 
 T_jup = 3.400 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.909153727107625E-15 -5.011118361735433E-15 1.101700656299485E-14 2.229128925175411E-14 1.927711355245131E-14 -2.858867533650965E-16
q -5.011118361735433E-15 1.322612875501028E-14 -6.532752141659256E-14 -5.986012155974236E-14 -6.010865983779477E-14 7.755221748728646E-16
tp 1.101700656299485E-14 -6.532752141659256E-14 1.281521509093087E-9 -3.294664137261422E-12 3.483994640337986E-10 5.679553863054858E-13
node 2.229128925175411E-14 -5.986012155974236E-14 -3.294664137261422E-12 2.321127688415352E-9 -2.314044071971126E-9 5.125685648908691E-11
peri 1.927711355245131E-14 -6.010865983779477E-14 3.483994640337986E-10 -2.314044071971126E-9 2.408301745953352E-9 -5.096916555206041E-11
i -2.858867533650965E-16 7.755221748728646E-16 5.679553863054858E-13 5.125685648908691E-11 -5.096916555206041E-11 1.756122560945751E-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 15.59   n/a E2020-QM9  

78338 (2002 PR88)          Discovered 2002-Aug-13 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 PR88 = 2000 EG174 = 2000 EL185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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