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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02951665659288032 3.1831e-08  
a 2.894743395379823 1.3873e-08 au
q 2.809300248653888 9.6711e-08 au
i 2.689783297762368 4.6214e-06 deg
node 52.3184773250873 0.0001063 deg
peri 45.23660663872933 0.00015388 deg
M .618837494891456 0.00010992 deg
tp 2459197.407657045600
(2020-Dec-13.90765705)
0.0005493 TDB
period 1798.926976425564
4.93
1.2932e-05
3.541e-08
d
yr
n .2001192959568118 1.4386e-09 deg/d
Q 2.980186542105757 1.4283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1586  
   data-arc span      11069 days (30.31 yr)  
   first obs. used      1990-11-23  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49603  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:41:27  

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 13.96   n/a MPCxxxxx  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1928-Jun-12 07:00 00:02 Juno 0.0245702445634925 0.0245599979952854 0.0245804970597463 5.6256133374712 5.62561324945419 2425409.791620573 2.48377718809037 791.018614673594 45.865806850117 49.8887330490554 61330.544179866 T 30 CATAB v2.0f-lin.ifort 2021-Apr-13 03:41:35 2021-Apr-13 03:41
2021-Aug-27 15:32 00:01 Europ 0.0316795437773417 0.0316777528600785 0.0316813348777423 2.5636358875988 2.56363575672989 2459454.146926164 1.32463209380361 161.878829870906 41.0541598970102 59.6299641077664 100526.604312527 T 30 CATAB v2.0f-lin.ifort 2021-Apr-13 03:41:35 2021-Apr-13 03:41

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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