Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
21107 (1992 PZ4)
Classification: Main-belt Asteroid          SPK-ID: 2021107
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903920683661932 6.7765e-08  
a 2.6089412641904 2.0009e-08 AU
q 2.112219540655279 1.8402e-07 AU
i 13.42745691218855 7.4864e-06 deg
node 183.3128155882381 2.1446e-05 deg
peri 162.5250520315152 2.6621e-05 deg
M 90.58260485723753 1.6471e-05 deg
tp 2456613.209196709946
(2013-Nov-16.70919671)
6.8963e-05 JED
period 1539.199379441111
4.21
1.7707e-05
4.848e-08
d
yr
n .2338878281842326 2.6907e-09 deg/d
Q 3.105662987725522 2.3819e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      953  
   data-arc span      23506 days (64.36 yr)  
   first obs. used      1950-08-22  
   last obs. used      2014-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4722  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:58:40  

Additional Information
 Earth MOID = 1.11021 AU 
 T_jup = 3.347 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO267786  
rotation period rot_per 3.289 h n/a LCDB (Rev. 2015-Feb); 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 Bul. 41, 178-183.]

21107 (1992 PZ4)          Discovered 1992-Aug-04 by Holt, H. E. at Palomar (675)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 PZ4 = 1950 QD = 1999 FJ47 = 2000 GG127 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Feb-27 00:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin