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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904804686137028 6.5939e-08  
a 2.609766647291944 1.8495e-08 au
q 2.112657073343362 1.7811e-07 au
i 13.45224441530298 7.145e-06 deg
node 183.24168628846 1.8344e-05 deg
peri 163.2210728083446 2.2934e-05 deg
M 229.9915835559398 1.6853e-05 deg
tp 2458156.621786694634
(2018-Feb-07.12178669)
7.5506e-05 JED
period 1539.929865203856
4.22
1.637e-05
4.482e-08
d
yr
n .2337768804505543 2.4851e-09 deg/d
Q 3.106876221240525 2.2017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1184  
   data-arc span      23979 days (65.65 yr)  
   first obs. used      1950-08-22  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44991  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:36:10  

Additional Information
 Earth MOID = 1.10926 au 
 Jupiter MOID = 2.34526 au 
 T_jup = 3.346 
[ 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 13.1 mag n/a MPO365504  
rotation period rot_per 3.289 h n/a LCDB (Rev. 2016-February); 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
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 2016-May-03 20:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin