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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035366315077381 7.2593e-08  
a 2.47033341580192 2.2626e-08 AU
q 2.214563415228784 1.7567e-07 AU
i 12.07426749901314 7.2682e-06 deg
node 89.79088225111894 3.715e-05 deg
peri 89.26883996735278 5.2595e-05 deg
M 187.8058602709764 3.8297e-05 deg
tp 2457678.840352459367
(2016-Oct-17.34035246)
0.00015343 JED
period 1418.181404254905
3.88
1.9484e-05
5.334e-08
d
yr
n .2538462279366437 3.4876e-09 deg/d
Q 2.726103416375055 2.4969e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      5872 days (16.08 yr)  
   first obs. used      1998-09-16  
   last obs. used      2014-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 14:24:31  

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 ]
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