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JPL Small-Body Database Browser
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39235 (2000 YH55)
Classification: Mars-crossing Asteroid          SPK-ID: 2039235
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3101296712313678 4.4631e-08  
a 2.352850621951451 8.7931e-09 au
q 1.623161832109128 1.0467e-07 au
i 14.14929769549606 5.3805e-06 deg
node 110.1445622271288 1.5388e-05 deg
peri 206.1843162224014 1.6402e-05 deg
M 277.8072045576396 6.7351e-06 deg
tp 2459301.468615717826
(2021-Mar-27.96861572)
2.5385e-05 TDB
period 1318.226263935743
3.61
7.3897e-06
2.023e-08
d
yr
n .2730942402294211 1.5309e-09 deg/d
Q 3.082539411793773 1.152e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      7986 days (21.86 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:08:35  

Additional Information
 Earth MOID = .620031 au 
 Jupiter MOID = 2.24178 au 
 T_jup = 3.451 
[ 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 14.4   n/a MPO358987  

39235 (2000 YH55)          Discovered 2000-Dec-30 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 YH55 = 1999 JO17 = 1999 NK51 = 1999 WW5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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