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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080689431876185 8.4994e-08  
a 3.172957341038119 3.3506e-08 AU
q 2.830059194412733 2.7745e-07 AU
i 12.63871479734348 8.9088e-06 deg
node 296.7093750417625 3.3188e-05 deg
peri 171.3987962910739 5.3124e-05 deg
M 27.250238176592 3.7672e-05 deg
tp 2456644.234689766702
(2013-Dec-17.73468977)
0.00021607 JED
period 2064.404403346124
5.65
3.2699e-05
8.952e-08
d
yr
n .1743844371851213 2.7622e-09 deg/d
Q 3.515855487663504 3.7127e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      16567 days (45.36 yr)  
   first obs. used      1969-01-15  
   last obs. used      2014-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51252  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:59:29  

Additional Information
 Earth MOID = 1.84708 AU 
 T_jup = 3.155 
[ 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 (905)
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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