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21107 (1992 PZ4)
Classification: Main-belt Asteroid          SPK-ID: 2021107
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917791219061501 1.5383e-08  
a 2.607400012561054 8.412e-09 au
q 2.10735512769401 4.1466e-08 au
i 13.45617403118251 9.8583e-07 deg
node 183.2240448425369 5.2333e-06 deg
peri 163.4007561574543 6.8414e-06 deg
M 290.0470299516758 9.0412e-06 deg
tp 2459695.322695835825
(2022-Apr-25.82269584)
3.9408e-05 TDB
period 1537.835640525089
4.21
7.4421e-06
2.038e-08
d
yr
n .2340952378220856 1.1329e-09 deg/d
Q 3.107444897428098 1.0025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2221  
   data-arc span      25877 days (70.85 yr)  
   first obs. used      1950-08-22  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43225  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 05:05:24  

Additional Information
 Earth MOID = 1.10406 au 
 Jupiter MOID = 2.35539 au 
 T_jup = 3.347 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.14   n/a MPCxxxxx  
rotation period rot_per 3.289 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Clark, M. (2014) Minor Planet Bull. 41, 178-183.]

21107 (1992 PZ4)          Discovered 1992-Aug-04 by Holt, H. E. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 PZ4 = 1950 QD = 1999 FJ47 = 2000 GG127 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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