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 ]  
44821 Amadora (1999 TZ236)
Classification: Main-belt Asteroid          SPK-ID: 2044821
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035366327771869 7.4095e-08  
a 2.470333415474828 2.3559e-08 AU
q 2.214563411799597 1.8074e-07 AU
i 12.07426639818174 8.087e-06 deg
node 89.79088509913031 3.8137e-05 deg
peri 89.26883849803771 5.6614e-05 deg
M 187.8058591439371 4.1444e-05 deg
tp 2457678.840356764491
(2016-Oct-17.34035676)
0.00016464 JED
period 1418.181403973238
3.88
2.0287e-05
5.554e-08
d
yr
n .2538462279870605 3.6313e-09 deg/d
Q 2.72610341915006 2.5998e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      5829 days (15.96 yr)  
   first obs. used      1998-09-16  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55684  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:46:12  

Additional Information
 Earth MOID = 1.25816 AU 
 T_jup = 3.447 
[ 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 14.8 mag n/a MPO263717  

44821 Amadora           Discovered 1999 Oct. 3 by the Catalina Sky Survey.
Amadora Gonzalez is the wife of D. Martinez-Delgado, who first observed this minor planet on 1998 Sept. 15 at the Las Campanas Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1999 TZ236 = 1998 SM35 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-20 07:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin