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JPL Small-Body Database Browser
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42791 (1999 AD6)
Classification: Main-belt Asteroid          SPK-ID: 2042791
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2174948262072293 6.6759e-08  
a 2.571318573944238 1.2885e-08 au
q 2.012070087580815 1.7738e-07 au
i 8.169220235814995 3.6672e-06 deg
node 132.7068696285345 4.3041e-05 deg
peri 287.3610799053184 4.4825e-05 deg
M 21.76961978468557 1.1578e-05 deg
tp 2458509.428896162043
(2019-Jan-25.92889616)		 4.8177e-05 TDB
period 1506.025263919788
4.12		 1.132e-05
3.099e-08		 d
yr
n .2390398146861193 1.7968e-09 deg/d
Q 3.130567060307661 1.5688e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1031  
   data-arc span      8292 days (22.70 yr)  
   first obs. used      1996-06-17  
   last obs. used      2019-03-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54188  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:21:34  

Additional Information
 Earth MOID = 1.04234 au 
 Jupiter MOID = 2.25254 au 
 T_jup = 3.382 
[ 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 14.8   n/a MPO385088  

42791 (1999 AD6)          Discovered 1999-Jan-15 by Spacewatch at Kitt Peak
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AD6 = 2001 OA26 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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