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185708 (1998 QR95)
Classification: Main-belt Asteroid          SPK-ID: 2185708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1796537262938124 3.6402e-08  
a 3.109044156141694 2.7637e-08 au
q 2.550492788278837 1.2022e-07 au
i 26.30841307953576 8.6655e-06 deg
node 203.7044019236049 1.1014e-05 deg
peri 126.3534955194571 2.785e-05 deg
M .6721671907563611 2.5316e-05 deg
tp 2458996.761360659823
(2020-May-27.26136066)
0.0001408 TDB
period 2002.344328870333
5.48
2.6699e-05
7.31e-08
d
yr
n .1797892574266195 2.3973e-09 deg/d
Q 3.667595524004551 3.2603e-08 au
  Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1998-08-19  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:08:39  

Additional Information
 Earth MOID = 1.6189 au 
 Jupiter MOID = 2.04991 au 
 T_jup = 3.037 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457180.5 (2015-Jun-07.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813902800276174 3.6851e-08  
q 2.543575941611009 1.2225e-07 au
tp 2456999.488497372771
(2014-Dec-07.98849737)
0.00013993 TDB
node 203.7731573653472 1.099e-05 deg
peri 126.9403286251145 2.7668e-05 deg
i 26.33965071806852 8.6726e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1998-08-19  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:08:39  

Additional Information
 Jupiter MOID = 2.04991 au 
 T_jup = 3.037 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.357974388017415E-15 -4.432462242853902E-15 2.197049907470122E-12 1.430976055686467E-15 4.113750810752705E-13 2.895311705689953E-15
q -4.432462242853902E-15 1.494472808903771E-14 -7.224356830812735E-12 -3.1787192872349E-15 -1.342892022830751E-12 -5.134546949019733E-15
tp 2.197049907470122E-12 -7.224356830812735E-12 1.958152102144308E-8 4.107466163289217E-12 3.586158908302456E-9 3.599839069981058E-11
node 1.430976055686467E-15 -3.1787192872349E-15 4.107466163289217E-12 1.207791898775683E-10 -1.071570685226929E-10 5.562001978465366E-11
peri 4.113750810752705E-13 -1.342892022830751E-12 3.586158908302456E-9 -1.071570685226929E-10 7.655368728426321E-10 -4.311711183854395E-11
i 2.895311705689953E-15 -5.134546949019733E-15 3.599839069981058E-11 5.562001978465366E-11 -4.311711183854395E-11 7.521435741304122E-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 14.6   n/a MPO475564  

185708 (1998 QR95)          Discovered 1998-Aug-19 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1998 QR95 = 2002 GK130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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