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91474 (1999 RO95)
Classification: Main-belt Asteroid          SPK-ID: 2091474
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208365939102989 4.7749e-08  
a 2.811002562855355 1.848e-08 au
q 2.22528537402509 1.3006e-07 au
i 5.292318123394514 4.7453e-06 deg
node 144.946826331836 5.307e-05 deg
peri 185.8603015687503 5.4246e-05 deg
M 163.2306686480396 1.334e-05 deg
tp 2458219.970093305792
(2018-Apr-11.47009331)
6.1518e-05 TDB
period 1721.433654209868
4.71
1.6975e-05
4.648e-08
d
yr
n .2091280132229311 2.0623e-09 deg/d
Q 3.39671975168562 2.2331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      9886 days (27.07 yr)  
   first obs. used      1993-03-26  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:41:13  

Additional Information
 Earth MOID = 1.21457 au 
 Jupiter MOID = 1.97241 au 
 T_jup = 3.283 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457248.5 (2015-Aug-14.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090325811191521 4.793e-08  
q 2.224506188196996 1.3038e-07 au
tp 2456491.561741368036
(2013-Jul-18.06174137)
5.8371e-05 TDB
node 145.0321021997412 5.2896e-05 deg
peri 184.8851984305116 5.4058e-05 deg
i 5.297362474321836 4.7513e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      9886 days (27.07 yr)  
   first obs. used      1993-03-26  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:41:13  

Additional Information
 Jupiter MOID = 1.97241 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.297238657949986E-15 -6.214265616132737E-15 1.016386858691142E-12 1.279102380561398E-14 1.815032822970539E-13 -7.85390157796766E-16
q -6.214265616132737E-15 1.699780726734602E-14 -2.84129944932209E-12 -3.537895066265383E-14 -4.877994635070739E-13 2.179520443434308E-15
tp 1.016386858691142E-12 -2.84129944932209E-12 3.407155214148015E-9 1.150344216928297E-11 6.774799156439935E-10 -1.35206817428081E-12
node 1.279102380561398E-14 -3.537895066265383E-14 1.150344216928297E-11 2.797959247887527E-9 -2.783670725378186E-9 6.015802348378319E-11
peri 1.815032822970539E-13 -4.877994635070739E-13 6.774799156439935E-10 -2.783670725378186E-9 2.922214876366805E-9 -6.019250784274009E-11
i -7.85390157796766E-16 2.179520443434308E-15 -1.35206817428081E-12 6.015802348378319E-11 -6.019250784274009E-11 2.25743886653779E-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 15.2   n/a MPO459428  
diameter diameter 5.399 km 0.355 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91474 (1999 RO95)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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