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227554 (2005 YK170)
Classification: Main-belt Asteroid          SPK-ID: 2227554
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03849689995676254 5.5683e-08  
a 2.781322789070358 2.6417e-08 au
q 2.674250483912052 1.5075e-07 au
i 5.759875791540356 6.5509e-06 deg
node 143.3315978069211 6.1699e-05 deg
peri 163.7011637048659 0.0001167 deg
M 242.0728770171515 0.00010283 deg
tp 2459755.491997283200
(2022-Jun-24.99199728)
0.00048562 TDB
period 1694.242291071672
4.64
2.4138e-05
6.609e-08
d
yr
n .2124843665496548 3.0273e-09 deg/d
Q 2.888395094228663 2.7434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      8473 days (23.20 yr)  
   first obs. used      1997-01-11  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58125  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:26:07  

Additional Information
 Earth MOID = 1.65808 au 
 Jupiter MOID = 2.21393 au 
 T_jup = 3.325 
[ 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 16.54   n/a E2021B55  
diameter diameter 3.029 km 0.646 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227554 (2005 YK170)          Discovered 2005-Dec-31 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2005 YK170 = 2007 HK37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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