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66517 (1999 RM98)
Classification: Main-belt Asteroid          SPK-ID: 2066517
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497816391383861 3.2322e-08  
a 2.631156129179608 1.1812e-08 au
q 2.237057251322075 8.6323e-08 au
i 3.454597937687794 4.8966e-06 deg
node 173.6374062950163 6.2361e-05 deg
peri 263.9179506556553 6.4876e-05 deg
M 245.8357439291552 1.94e-05 deg
tp 2459494.863053490098
(2021-Oct-07.36305349)
8.5568e-05 TDB
period 1558.900354468173
4.27
1.0498e-05
2.874e-08
d
yr
n .230932014973347 1.5551e-09 deg/d
Q 3.025255007037141 1.3582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      8549 days (23.41 yr)  
   first obs. used      1997-03-05  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 05:53:40  

Additional Information
 Earth MOID = 1.2556 au 
 Jupiter MOID = 2.22718 au 
 T_jup = 3.381 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456908.5 (2014-Sep-08.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516438471551509 3.2534e-08  
q 2.23005389161696 8.7226e-08 au
tp 2456374.443107595285
(2013-Mar-22.94310760)
7.532e-05 TDB
node 173.8999260843312 6.2395e-05 deg
peri 262.7655640597192 6.4823e-05 deg
i 3.4543987530938 4.8973e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      8549 days (23.41 yr)  
   first obs. used      1997-03-05  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 05:53:40  

Additional Information
 Jupiter MOID = 2.22718 au 
 T_jup = 3.381 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.058435213661976E-15 -2.819721322510838E-15 -1.960476912431612E-13 -1.652879845093468E-15 -5.072909672871366E-14 5.126556051677417E-17
q -2.819721322510838E-15 7.608440216673874E-15 7.548676200572315E-13 4.693409158341298E-15 1.94226680703966E-13 9.189708706475908E-17
tp -1.960476912431612E-13 7.548676200572315E-13 5.673158078394457E-9 4.040277988813221E-12 1.335890504749165E-9 -1.867851337510404E-13
node -1.652879845093468E-15 4.693409158341298E-15 4.040277988813221E-12 3.893150119624385E-9 -3.884548434686986E-9 -1.23716404321229E-11
peri -5.072909672871366E-14 1.94226680703966E-13 1.335890504749165E-9 -3.884548434686986E-9 4.202042481127146E-9 1.233535094482253E-11
i 5.126556051677417E-17 9.189708706475908E-17 -1.867851337510404E-13 -1.23716404321229E-11 1.233535094482253E-11 2.398344791986909E-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 15.1   n/a MPO385239  
diameter diameter 2.742 km 0.910 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66517 (1999 RM98)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RM98 = 1997 EY28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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