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357944 (2005 YZ55)
Classification: Main-belt Asteroid          SPK-ID: 2357944
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2252344010899053 9.0715e-08  
a 2.883875762806543 2.8029e-08 au
q 2.234327732553117 2.6083e-07 au
i 9.633821273493606 6.4129e-06 deg
node 56.40643684755086 5.5231e-05 deg
peri 263.4455500202719 5.9304e-05 deg
M 71.43453474900343 1.821e-05 deg
tp 2458645.548539700808
(2019-Jun-11.04853970)
9.0096e-05 TDB
period 1788.806018779198
4.90
2.6079e-05
7.14e-08
d
yr
n .2012515589844047 2.934e-09 deg/d
Q 3.533423793059968 3.4342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      6912 days (18.92 yr)  
   first obs. used      2000-11-28  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62288  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 11:09:57  

Additional Information
 Earth MOID = 1.2467 au 
 Jupiter MOID = 1.89642 au 
 T_jup = 3.235 
[ 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 16.2   n/a MPO450331  

357944 (2005 YZ55)          Discovered 2005-Dec-23 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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