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129141 (2005 AL57)
Classification: Main-belt Asteroid          SPK-ID: 2129141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04419481399038853 5.3057e-08  
a 3.039335570151095 3.2372e-08 au
q 2.905012699973896 1.5863e-07 au
i 8.364025989279289 7.3267e-06 deg
node 289.2094210068472 5.8998e-05 deg
peri 334.4924247404084 0.00013253 deg
M 199.742326297132 0.00011974 deg
tp 2459862.054468954452
(2022-Oct-09.55446895)
0.00064347 TDB
period 1935.380700699963
5.30
3.0921e-05
8.466e-08
d
yr
n .1860099151912593 2.9718e-09 deg/d
Q 3.173658440328294 3.3803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      21635 days (59.23 yr)  
   first obs. used      1960-10-22  
   last obs. used      2020-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56358  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:03:01  

Additional Information
 Earth MOID = 1.8914 au 
 Jupiter MOID = 1.93316 au 
 T_jup = 3.223 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO453770  

129141 (2005 AL57)          Discovered 2005-Jan-15 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2005 AL57 = 2003 WG21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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