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21204 (1994 PH26)
Classification: Main-belt Asteroid          SPK-ID: 2021204
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02951665823668099 3.1844e-08  
a 2.894743398361141 1.3944e-08 au
q 2.809300246788826 9.6795e-08 au
i 2.689783068547066 4.6932e-06 deg
node 52.31848248843053 0.00010757 deg
peri 45.23660059048288 0.00015582 deg
M .6188383685981202 0.00011149 deg
tp 2459197.407652674894
(2020-Dec-13.90765267)
0.00055712 TDB
period 1798.926979204656
4.93
1.2998e-05
3.559e-08
d
yr
n .2001192956476552 1.446e-09 deg/d
Q 2.980186549933455 1.4356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      11015 days (30.16 yr)  
   first obs. used      1990-11-23  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:51:21  

Additional Information
 Earth MOID = 1.8267 au 
 Jupiter MOID = 2.05435 au 
 T_jup = 3.287 
[ 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 13.95   n/a E2021B10  

21204 (1994 PH26)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 PH26 = 1992 ED35 = 1992 EX36 = 1999 RP151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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