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74548 (1999 JM64)
Classification: Main-belt Asteroid          SPK-ID: 2074548
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3288775223124545 5.2371e-08  
a 3.127130294306857 2.2174e-08 au
q 2.098687431167001 1.725e-07 au
i 21.10570268237174 6.4509e-06 deg
node 239.199894322294 1.3088e-05 deg
peri 259.4953542227997 1.7212e-05 deg
M 354.9679027596565 9.0053e-06 deg
tp 2459028.733447788182
(2020-Jun-28.23344779)
5.0629e-05 TDB
period 2019.841970114961
5.53
2.1484e-05
5.882e-08
d
yr
n .1782317653194969 1.8957e-09 deg/d
Q 4.155573157446713 2.9467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      876  
   data-arc span      8193 days (22.43 yr)  
   first obs. used      1997-11-07  
   last obs. used      2020-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48705  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:14  

Additional Information
 Earth MOID = 1.22494 au 
 Jupiter MOID = 1.7881 au 
 T_jup = 3.030 
[ 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 13.7   n/a MPO280227  
diameter diameter 9.538 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74548 (1999 JM64)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JM64 = 2001 QO174 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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