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187465 (2005 YZ139)
Classification: Main-belt Asteroid          SPK-ID: 2187465
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1444813418895599 4.8294e-08  
a 3.145694335186953 3.3444e-08 au
q 2.691200196464755 1.5893e-07 au
i 23.99151615653012 5.4852e-06 deg
node 97.83531474422762 1.5287e-05 deg
peri 209.8222440264622 3.0618e-05 deg
M 31.57013143506439 2.3403e-05 deg
tp 2459021.790723547538
(2020-Jun-21.29072355)
0.00013275 TDB
period 2037.854661936258
5.58
3.2498e-05
8.897e-08
d
yr
n .1766563664839316 2.8172e-09 deg/d
Q 3.60018847390915 3.8276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      8471 days (23.19 yr)  
   first obs. used      1997-07-03  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52966  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:55:32  

Additional Information
 Earth MOID = 1.69318 au 
 Jupiter MOID = 1.64915 au 
 T_jup = 3.060 
[ 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 15.10   n/a E2021B55  

187465 (2005 YZ139)          Discovered 2005-Dec-28 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2005 YZ139 = 1997 ND1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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