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JPL Small-Body Database Browser
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66271 (1999 JM6)
Classification: Main-belt Asteroid          SPK-ID: 2066271
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173250439675591 3.7473e-08  
a 2.348946215851195 1.0439e-08 au
q 1.94199025118066 9.0865e-08 au
i 11.96805732620115 4.5492e-06 deg
node 236.5823088692061 2.0513e-05 deg
peri 24.95696920424313 2.5047e-05 deg
M 278.362415861565 1.5691e-05 deg
tp 2459298.691788377507
(2021-Mar-25.19178838)
5.8378e-05 TDB
period 1314.946356495161
3.60
8.7656e-06
2.4e-08
d
yr
n .2737754268239038 1.825e-09 deg/d
Q 2.75590218052173 1.2247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      7600 days (20.81 yr)  
   first obs. used      1999-04-15  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:54:00  

Additional Information
 Earth MOID = .933545 au 
 Jupiter MOID = 2.30984 au 
 T_jup = 3.510 
[ 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 MPO417283  
diameter diameter 2.327 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.130   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66271 (1999 JM6)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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