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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039646517208572 5.9581e-08  
a 2.470555369575288 1.8934e-08 au
q 2.2137049410203 1.4926e-07 au
i 12.07345831586646 6.8193e-06 deg
node 89.7796843137111 3.1519e-05 deg
peri 89.23374778077438 4.6812e-05 deg
M 340.1957352525251 3.5055e-05 deg
tp 2457678.527292427599
(2016-Oct-17.02729243)
0.00013828 JED
period 1418.372539052074
3.88
1.6305e-05
4.464e-08
d
yr
n .2538120205292434 2.9177e-09 deg/d
Q 2.727405798130277 2.0902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      6367 days (17.43 yr)  
   first obs. used      1998-09-16  
   last obs. used      2016-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55911  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:37:55  

Additional Information
 Earth MOID = 1.25564 au 
 Jupiter MOID = 2.33584 au 
 T_jup = 3.446 
[ 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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