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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 ]

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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 
[ show covariance matrix ]

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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