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39744 (1997 AT16)
Classification: Main-belt Asteroid          SPK-ID: 2039744
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816422985714142 4.6515e-08  
a 2.448179294857471 1.0311e-08 au
q 2.003486380424616 1.1113e-07 au
i 3.328826769944679 4.8547e-06 deg
node 80.84659004091436 7.3632e-05 deg
peri 319.0326675972621 7.4782e-05 deg
M 90.87162521459784 1.3493e-05 deg
tp 2458647.325733053393
(2019-Jun-12.82573305)
5.1455e-05 TDB
period 1399.146717146574
3.83
8.8392e-06
2.42e-08
d
yr
n .2572996781453953 1.6255e-09 deg/d
Q 2.892872209290326 1.2184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      8421 days (23.06 yr)  
   first obs. used      1997-01-14  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:34:42  

Additional Information
 Earth MOID = 1.01302 au 
 Jupiter MOID = 2.51705 au 
 T_jup = 3.472 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO452720  

39744 (1997 AT16)          Discovered 1997-Jan-14 by Kobayashi, T. at Oizumi
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AT16 = 1999 NP40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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