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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2351797744850832 3.0887e-08  
a 2.579873952983385 1.1012e-08 au
q 1.973139778520812 7.8731e-08 au
i 3.018475453188872 3.3834e-06 deg
node 313.7186168755456 9.7331e-05 deg
peri 191.0664785349214 9.816e-05 deg
M 323.9352323573203 1.5572e-05 deg
tp 2459548.127088646448
(2021-Nov-29.62708865)
6.6166e-05 TDB
period 1513.547860713883
4.14
9.6903e-06
2.653e-08
d
yr
n .2378517451243343 1.5228e-09 deg/d
Q 3.186608127445957 1.3601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1247  
   data-arc span      10164 days (27.83 yr)  
   first obs. used      1993-03-21  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48868  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:40:23  

Additional Information
 Earth MOID = .986237 au 
 Jupiter MOID = 1.83533 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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