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JPL Small-Body Database Browser
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66490 (1999 RS49)
Classification: Main-belt Asteroid          SPK-ID: 2066490
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3059225799372305 3.6546e-08  
a 2.43843453809331 1.3761e-08 au
q 1.692462353191756 8.8217e-08 au
i 12.85718725425467 7.2931e-06 deg
node 334.1413065950259 2.1267e-05 deg
peri 69.12927463998098 2.8799e-05 deg
M 113.9612779076489 2.2238e-05 deg
tp 2458560.229194432280
(2019-Mar-17.72919443)
8.2672e-05 TDB
period 1390.801269645479
3.81
1.1773e-05
3.223e-08
d
yr
n .2588435945933278 2.191e-09 deg/d
Q 3.184406722994865 1.797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      551  
   data-arc span      8304 days (22.74 yr)  
   first obs. used      1997-02-06  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 05:51:20  

Additional Information
 Earth MOID = .747707 au 
 Jupiter MOID = 2.43142 au 
 T_jup = 3.405 
[ 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 15.3   n/a MPO453061  

66490 (1999 RS49)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RS49 = 1997 ER45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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