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146788 (2001 YS9)
Classification: Main-belt Asteroid          SPK-ID: 2146788
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .009527958749755585 2.2443e-07  
a 2.94273342399495 3.8437e-08 au
q 2.914695181319599 6.5714e-07 au
i 11.96461976741959 8.6339e-06 deg
node 75.97126749898257 0.00010755 deg
peri 93.48370091600684 0.00045538 deg
M 164.212342327098 0.00044107 deg
tp 2458159.437818840404
(2018-Feb-09.93781884)
0.002258 TDB
period 1843.84669828493
5.05
3.6126e-05
9.891e-08
d
yr
n .1952439974184714 3.8253e-09 deg/d
Q 2.970771666670301 3.8803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      7353 days (20.13 yr)  
   first obs. used      1998-04-24  
   last obs. used      2018-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62434  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 05:47:38  

Additional Information
 Earth MOID = 1.92336 au 
 Jupiter MOID = 2.05787 au 
 T_jup = 3.240 
[ 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 15.1   n/a MPO348316  
diameter diameter 4.732 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146788 (2001 YS9)          Discovered 2001-Dec-17 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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