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JPL Small-Body Database Browser
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66316 (1999 JR49)
Classification: Main-belt Asteroid          SPK-ID: 2066316
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07400096497005525 3.7332e-08  
a 3.089330298265249 2.2532e-08 au
q 2.860716875082392 1.1641e-07 au
i 10.15447254424135 5.8929e-06 deg
node 219.8770587787977 2.4304e-05 deg
peri 68.68066223947937 4.7865e-05 deg
M 264.9469090596568 4.065e-05 deg
tp 2459524.171194678911
(2021-Nov-05.67119468)
0.0002244 TDB
period 1983.329823569094
5.43
2.1698e-05
5.941e-08
d
yr
n .1815129262525601 1.9858e-09 deg/d
Q 3.317943721448106 2.4199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      774  
   data-arc span      7244 days (19.83 yr)  
   first obs. used      1999-05-10  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58691  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:51:05  

Additional Information
 Earth MOID = 1.86467 au 
 Jupiter MOID = 1.80338 au 
 T_jup = 3.197 
[ 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 14.3   n/a MPO257297  

66316 (1999 JR49)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JR49 = 2000 SM26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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