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136403 (2004 YS20)
Classification: Main-belt Asteroid          SPK-ID: 2136403
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1935647422792695 4.8256e-08  
a 2.432798449361399 1.5448e-08 au
q 1.961894444493353 1.1996e-07 au
i 3.312104409936734 4.5492e-06 deg
node 282.5771744866959 0.00011225 deg
peri 312.8732234885384 0.00011305 deg
M 285.159380390265 1.6521e-05 deg
tp 2459288.632664896843
(2021-Mar-15.13266490)
6.4768e-05 TDB
period 1385.982103084712
3.79
1.3202e-05
3.615e-08
d
yr
n .2597436137153329 2.4741e-09 deg/d
Q 2.903702454229445 1.8439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      7938 days (21.73 yr)  
   first obs. used      1998-05-01  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:40:17  

Additional Information
 Earth MOID = .952117 au 
 Jupiter MOID = 2.11263 au 
 T_jup = 3.478 
[ 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 16.4   n/a MPO453847  

136403 (2004 YS20)          Discovered 2004-Dec-18 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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