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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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917791217059295 1.4791e-08  
a 2.607400012281665 8.1805e-09 au
q 2.107355127990258 4.0373e-08 au
i 13.45617409622404 9.7854e-07 deg
node 183.2240445828068 5.2116e-06 deg
peri 163.4007561109541 6.651e-06 deg
M 290.0470304255286 8.5182e-06 deg
tp 2459695.322693763608
(2022-Apr-25.82269376)
3.7102e-05 TDB
period 1537.835640277915
4.21
7.2373e-06
1.981e-08
d
yr
n .2340952378597113 1.1017e-09 deg/d
Q 3.107444896573073 9.7494e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2289  
   data-arc span      25919 days (70.96 yr)  
   first obs. used      1950-08-22  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:40:25  

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 13.15   n/a MPO636381  
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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