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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1037828692873765 6.3873e-08  
a 2.469908032209639 2.0034e-08 au
q 2.213573889750984 1.5769e-07 au
i 12.07483610599042 6.9115e-06 deg
node 89.78626930632798 3.3932e-05 deg
peri 89.32172773683797 4.8618e-05 deg
M 289.3259345248186 3.5914e-05 deg
tp 2457678.840994309545
(2016-Oct-17.34099431)
0.00014225 JED
period 1417.815110503644
3.88
1.7251e-05
4.723e-08
d
yr
n .253911809327606 3.0894e-09 deg/d
Q 2.726242174668293 2.2114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      562  
   data-arc span      6303 days (17.26 yr)  
   first obs. used      1998-09-16  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5593  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:51:24  

Additional Information
 Earth MOID = 1.25605 au 
 Jupiter MOID = 2.33663 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 14.9 mag n/a MPO359034  

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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