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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4919335523741196 1.7701e-08  
a 1.694817663055759 1.0317e-09 au
q .8610799894423359 3e-08 au
i 7.838685530745206 5.1117e-06 deg
node 326.880707191769 1.1588e-05 deg
peri 233.0690234116012 1.3161e-05 deg
M 212.0603362253707 1.5062e-06 deg
tp 2459531.680704506775
(2021-Nov-13.18070451)
3.5259e-06 TDB
period 805.903235011172
2.21
7.3589e-07
2.015e-09
d
yr
n .4467037534537374 4.079e-10 deg/d
Q 2.528555336669182 1.5393e-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 = .00140071 au 
 Jupiter MOID = 2.46973 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. 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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