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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .491889189663232 1.7693e-08  
a 1.694978721883126 1.0302e-09 au
q .8612370118796147 2.9989e-08 au
i 7.838666004724612 5.1117e-06 deg
node 326.8799286722979 1.1587e-05 deg
peri 233.0585475318433 1.316e-05 deg
M 299.6243509723303 1.5467e-06 deg
tp 2459531.677407909477
(2021-Nov-13.17740791)
3.5285e-06 TDB
period 806.0181154344126
2.21
7.3486e-07
2.012e-09
d
yr
n .4466400855097083 4.0721e-10 deg/d
Q 2.528720431886638 1.537e-09 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      9897 days (27.10 yr)  
   first obs. used      1993-08-13  
   last obs. used      2020-09-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .32055  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:40:05  

Additional Information
 Earth MOID = .00176032 au 
 Jupiter MOID = 2.46857 au 
 T_jup = 4.054 
[ 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. 2020-October); 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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