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56137 (1999 CW55)
Classification: Main-belt Asteroid          SPK-ID: 2056137
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04299248045061527 3.9102e-08  
a 2.408711336931129 9.6248e-09 au
q 2.305154861866943 9.2448e-08 au
i 9.978168352983131 4.3247e-06 deg
node 49.23335991083316 2.1833e-05 deg
peri 111.937496529994 5.1502e-05 deg
M 138.04491751884 4.7098e-05 deg
tp 2458076.907420769708
(2017-Nov-19.40742077)
0.00017789 TDB
period 1365.449245874483
3.74
8.1842e-06
2.241e-08
d
yr
n .2636494919805261 1.5803e-09 deg/d
Q 2.512267811995316 1.0039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1625  
   data-arc span      8059 days (22.06 yr)  
   first obs. used      1997-11-03  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4749  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:41:07  

Additional Information
 Earth MOID = 1.32856 au 
 Jupiter MOID = 2.47648 au 
 T_jup = 3.499 
[ 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 13.9   n/a MPO449363  
diameter diameter 4.450 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56137 (1999 CW55)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 CW55 = 1999 LC1 = 2001 QK199 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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