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90416 (2003 YK118)
Classification: Apollo [NEO, PHA]          SPK-ID: 2090416
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 127 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .491952311455561 1.7918e-08  
a 1.694823750412576 1.0396e-09 au
q .8610512888873264 3.0384e-08 au
i 7.838642292887148 5.2323e-06 deg
node 326.8804975277574 1.1717e-05 deg
peri 233.0788416286917 1.3351e-05 deg
M 122.6943938381177 1.4856e-06 deg
tp 2458725.832384335314
(2019-Aug-30.33238434)
3.2331e-06 TDB
period 805.9075769162606
2.21
7.415e-07
2.03e-09
d
yr
n .4467013467940213 4.11e-10 deg/d
Q 2.528596211937826 1.551e-09 au
  Orbit Determination Parameters
   # obs. used (total)      891  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      9211 days (25.22 yr)  
   first obs. used      1993-08-13  
   last obs. used      2018-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .3209  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:09:39  

Additional Information
 Earth MOID = .00143893 au 
 Jupiter MOID = 2.47081 au 
 T_jup = 4.055 
[ 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 18.6   n/a MPO436404  
diameter diameter 0.968 km 0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 43.58 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2015) Minor Planet Bull. 42, 172-183.]
geometric albedo albedo 0.062   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

90416 (2003 YK118)          Discovered 2003-Dec-28 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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