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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456351.5 (2013-Feb-28.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02620768976039009 3.9569e-08  
q 2.966795968004598 1.1622e-07 au
tp 2456352.141464618438
(2013-Feb-28.64146462)
0.00046204 TDB
node 47.74142374876138 0.00010227 deg
peri 79.03460828807917 0.00013359 deg
i 2.440582899354551 4.3118e-06 deg
  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
 Jupiter MOID = 1.8577 au 
 T_jup = 3.235 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.565742644804719E-15 -4.551312745820366E-15 2.917087722018384E-12 -4.77003895361692E-15 5.309021740653013E-13 1.083227401016103E-16
q -4.551312745820366E-15 1.350661318013372E-14 -7.878392088128913E-12 9.306807027993197E-15 -1.428104292238497E-12 -2.434979237435028E-16
tp 2.917087722018384E-12 -7.878392088128913E-12 2.134844242966857E-7 -3.991990620953073E-11 3.973544111877529E-8 -3.169132276127667E-13
node -4.77003895361692E-15 9.306807027993197E-15 -3.991990620953073E-11 1.045844101700312E-8 -1.045666958919884E-8 -6.025307772517407E-11
peri 5.309021740653013E-13 -1.428104292238497E-12 3.973544111877529E-8 -1.045666958919884E-8 1.784556018012607E-8 6.015009914250183E-11
i 1.083227401016103E-16 -2.434979237435028E-16 -3.169132276127667E-13 -6.025307772517407E-11 6.015009914250183E-11 1.859152636035925E-11

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

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