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27157 (1998 YK27)
Classification: Main-belt Asteroid          SPK-ID: 2027157
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1135836041056257 3.926e-08  
a 3.149883250580012 2.0249e-08 au
q 2.79210815846719 1.2307e-07 au
i 4.456614263047169 4.4191e-06 deg
node 219.9180427392296 4.99e-05 deg
peri 341.4871034113631 5.2948e-05 deg
M 152.7895084618931 1.921e-05 deg
tp 2457733.875135134198
(2016-Dec-11.37513513)
0.00010648 TDB
period 2041.926533388255
5.59
1.969e-05
5.391e-08
d
yr
n .176304090335041 1.7e-09 deg/d
Q 3.507658342692833 2.2549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1568  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1997-10-29  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53031  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:34:58  

Additional Information
 Earth MOID = 1.78974 au 
 Jupiter MOID = 1.46377 au 
 T_jup = 3.193 
[ 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 13.6   n/a MPO416979  
diameter diameter 7.886 km 0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.124   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27157 (1998 YK27)          Discovered 1998-Dec-25 by Korlevic, K. at Visnjan
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 YK27 = 2000 GY65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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