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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2175439009397985 5.7712e-08  
a 2.570274692922379 1.0935e-08 au
q 2.011127109737202 1.5197e-07 au
i 8.170121481621464 3.4972e-06 deg
node 132.7088920784618 3.9464e-05 deg
peri 287.2387411907216 4.1103e-05 deg
M 165.3705160442641 1.1746e-05 deg
tp 2458509.109643092458
(2019-Jan-25.60964309)
4.7059e-05 TDB
period 1505.108252913071
4.12
9.6053e-06
2.63e-08
d
yr
n .2391854534736859 1.5264e-09 deg/d
Q 3.129422276107556 1.3314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      9011 days (24.67 yr)  
   first obs. used      1996-06-17  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:11:44  

Additional Information
 Earth MOID = 1.04109 au 
 Jupiter MOID = 2.25523 au 
 T_jup = 3.383 
[ 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 14.83   n/a E2021B10  

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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