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JPL Small-Body Database Browser
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442562 (2012 AL16)
Classification: Main-belt Asteroid          SPK-ID: 2442562
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03825088912173182 7.5544e-08  
a 3.185192137569254 6.5589e-08 au
q 3.06335570628368 2.5025e-07 au
i 5.811335504934394 7.8833e-06 deg
node 51.72418900773226 8.0834e-05 deg
peri 291.2471656536595 0.00012933 deg
M 223.9952222588982 0.0001029 deg
tp 2459384.928824323068
(2021-Jun-19.42882432)
0.00060131 TDB
period 2076.356297525586
5.68
6.4134e-05
1.756e-07
d
yr
n .1733806478343893 5.3554e-09 deg/d
Q 3.307028568854828 6.8098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      7098 days (19.43 yr)  
   first obs. used      1999-12-04  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58342  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:13:35  

Additional Information
 Earth MOID = 2.06115 au 
 Jupiter MOID = 1.86457 au 
 T_jup = 3.189 
[ 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 16.2   n/a MPO437721  

442562 (2012 AL16)          Discovered 1999-Dec-04 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2012 AL16 = 1999 XW244 = 2013 ET39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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