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21139 (1993 FP26)
Classification: Main-belt Asteroid          SPK-ID: 2021139
[ 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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2351158304127973 3.0897e-08  
a 2.57938826580972 1.1025e-08 au
q 1.972933251736843 7.8728e-08 au
i 3.018499057311941 3.3836e-06 deg
node 313.7175249082741 9.735e-05 deg
peri 191.1054591571086 9.8178e-05 deg
M 277.269163570862 1.5365e-05 deg
tp 2459548.227005827185
(2021-Nov-29.72700583)		 6.6171e-05 TDB
period 1513.12046995934
4.14		 9.701e-06
2.656e-08		 d
yr
n .2379189279024649 1.5254e-09 deg/d
Q 3.185843279882597 1.3617e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1245  
   data-arc span      10164 days (27.83 yr)  
   first obs. used      1993-03-21  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:51:06  

Additional Information
 Earth MOID = .985198 au 
 Jupiter MOID = 1.83636 au 
 T_jup = 3.384 
[ 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 14.98   n/a E2021B10  

21139 (1993 FP26)          Discovered 1993-Mar-21 by UESAC at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 FP26 = 1997 HY4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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