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16786 (1997 AT1)
Classification: Main-belt Asteroid          SPK-ID: 2016786
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076725853707225 6.8805e-08  
a 3.170807550722689 3.054e-08 AU
q 2.829398504023368 2.1891e-07 AU
i 12.63798533235331 7.9201e-06 deg
node 296.7059063962172 3.2902e-05 deg
peri 171.1358382988556 5.0423e-05 deg
M 62.40932116278487 3.5999e-05 deg
tp 2456642.980108058105
(2013-Dec-16.48010806)
0.00020567 JED
period 2062.306698760106
5.65
2.9795e-05
8.157e-08
d
yr
n .1745618147952669 2.5219e-09 deg/d
Q 3.512216597422009 3.3828e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      16874 days (46.20 yr)  
   first obs. used      1969-01-15  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51065  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:56:29  

Additional Information
 Earth MOID = 1.84671 AU 
 T_jup = 3.156 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1 mag n/a MPO279692  
diameter diameter 24.02 km 2.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0584   0.011 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

16786 (1997 AT1)          Discovered 1997-Jan-02 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AT1 = 1952 BC2 = 1969 AF1 = 1979 YH = 1990 WZ13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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