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39649 (1995 SM15)
Classification: Main-belt Asteroid          SPK-ID: 2039649
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05879943988206635 4.5563e-08  
a 2.558137546624759 1.4207e-08 au
q 2.40772049174194 1.1639e-07 au
i 8.855770970929564 5.2098e-06 deg
node 348.9861839399863 2.9509e-05 deg
peri 358.8294764784138 5.0941e-05 deg
M 16.87057313789469 4.4071e-05 deg
tp 2458930.465569551809
(2020-Mar-21.96556955)
0.00018272 TDB
period 1494.459895065259
4.09
1.245e-05
3.409e-08
d
yr
n .2408897028208841 2.0067e-09 deg/d
Q 2.708554601507578 1.5042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      8723 days (23.88 yr)  
   first obs. used      1995-08-24  
   last obs. used      2019-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60486  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:50:58  

Additional Information
 Earth MOID = 1.40085 au 
 Jupiter MOID = 2.55142 au 
 T_jup = 3.417 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO436048  
diameter diameter 4.619 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39649 (1995 SM15)          Discovered 1995-Sep-18 by Spacewatch at Kitt Peak
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 SM15 = 1999 RD152 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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