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 ]  
11902 (1991 PZ12)
Classification: Main-belt Asteroid          SPK-ID: 2011902
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304579045418792 4.9454e-08  
a 2.432296959403212 1.7498e-08 AU
q 2.114984594855884 1.2188e-07 AU
i 5.556764675630363 7.4074e-06 deg
node 322.0884431362772 5.2171e-05 deg
peri 80.78368961586384 6.2841e-05 deg
M 354.2384735924538 3.1449e-05 deg
tp 2457022.674731923772
(2014-Dec-31.17473192)
0.00012101 JED
period 1385.553571724046
3.79
1.4952e-05
4.094e-08
d
yr
n .2598239485984302 2.8038e-09 deg/d
Q 2.749609323950539 1.9781e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      951  
   data-arc span      11047 days (30.25 yr)  
   first obs. used      1984-11-20  
   last obs. used      2015-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49485  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:28:49  

Additional Information
 Earth MOID = 1.13157 AU 
 T_jup = 3.489 
[ 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 14.4 mag n/a MPO266022  

11902 (1991 PZ12)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PZ12 = 1984 WH1 = 1984 YF3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-29 17:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin