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66409 (1999 MK1)
Classification: Main-belt Asteroid          SPK-ID: 2066409
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282543246443689 6.351e-08  
a 2.561948600285947 1.2356e-08 au
q 2.233367612782687 1.5664e-07 au
i 14.32678478408151 3.0044e-06 deg
node 307.9577057420224 2.1065e-05 deg
peri 20.78206644570554 3.0182e-05 deg
M 67.52994147923404 2.3641e-05 deg
tp 2458919.537785031457
(2020-Mar-11.03778503)
9.7679e-05 TDB
period 1497.800755828861
4.10
1.0836e-05
2.967e-08
d
yr
n .2403523957368958 1.7388e-09 deg/d
Q 2.890529587789208 1.3941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1467  
   data-arc span      7928 days (21.71 yr)  
   first obs. used      1999-06-20  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45227  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:21:56  

Additional Information
 Earth MOID = 1.22397 au 
 Jupiter MOID = 2.43163 au 
 T_jup = 3.380 
[ 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 14.49   n/a E2021B10  
diameter diameter 3.684 km 0.677 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66409 (1999 MK1)          Discovered 1999-Jun-20 by LONEOS at Anderson Mesa
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 MK1 = 2000 XR32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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