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39276 (2001 AT39)
Classification: Main-belt Asteroid          SPK-ID: 2039276
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3550025529283476 4.3861e-08  
a 2.922623434927431 1.7387e-08 au
q 1.885084654279977 1.2886e-07 au
i 12.54519009053355 5.6923e-06 deg
node 98.89035941654032 1.6527e-05 deg
peri 258.0736180001789 1.88e-05 deg
M 316.0174877756705 8.2393e-06 deg
tp 2458823.464259068053
(2019-Dec-05.96425907)
4.2212e-05 TDB
period 1824.978365380828
5.00
1.6285e-05
4.459e-08
d
yr
n .1972626124391764 1.7603e-09 deg/d
Q 3.960162215574885 2.3559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1159  
   data-arc span      7927 days (21.70 yr)  
   first obs. used      1998-03-24  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51627  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:09:03  

Additional Information
 Earth MOID = .926666 au 
 Jupiter MOID = 1.72128 au 
 T_jup = 3.148 
[ 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 14.0   n/a MPO493123  
diameter diameter 8.964 km 2.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.049   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

39276 (2001 AT39)          Discovered 2001-Jan-03 by LONEOS at Anderson Mesa
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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