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17684 (1997 AS16)
Classification: Main-belt Asteroid          SPK-ID: 2017684
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02375132608600992 4.0269e-08  
a 3.052482780245789 1.7929e-08 au
q 2.979982266360241 1.1758e-07 au
i 2.436287692252006 4.3047e-06 deg
node 47.64444480037506 0.00010252 deg
peri 86.33124332123418 0.00013843 deg
M 160.4805316207999 9.3156e-05 deg
tp 2458332.143390110320
(2018-Aug-01.64339011)
0.00050326 TDB
period 1947.952043796492
5.33
1.7162e-05
4.699e-08
d
yr
n .184809477803351 1.6282e-09 deg/d
Q 3.124983294131337 1.8355e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1589  
   data-arc span      10860 days (29.73 yr)  
   first obs. used      1990-11-22  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:10:13  

Additional Information
 Earth MOID = 1.99481 au 
 Jupiter MOID = 1.8577 au 
 T_jup = 3.235 
[ 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 13.44   n/a E2021B10  
diameter diameter 5.386 km 0.908 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.319   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17684 (1997 AS16)          Discovered 1997-Jan-14 by Kobayashi, T. at Oizumi
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AS16 = 1992 CQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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