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16800 (1997 JQ16)
Classification: Main-belt Asteroid          SPK-ID: 2016800
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1750585736226759 3.4652e-08  
a 2.232424112527894 6.5631e-09 au
q 1.841619131667893 7.855e-08 au
i 2.228906233255959 4.1986e-06 deg
node 125.4250189592966 8.8804e-05 deg
peri 69.52249055707468 8.9774e-05 deg
M 54.11881594115145 1.1541e-05 deg
tp 2459017.349010512078
(2020-Jun-16.84901051)
3.9059e-05 TDB
period 1218.325919904615
3.34
5.3726e-06
1.471e-08
d
yr
n .2954874341245116 1.3031e-09 deg/d
Q 2.623229093387895 7.712e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      8984 days (24.60 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53679  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:42:27  

Additional Information
 Earth MOID = .841335 au 
 Jupiter MOID = 2.33102 au 
 T_jup = 3.620 
[ 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 15.95   n/a E2021B10  
diameter diameter 4.068 km 0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16800 (1997 JQ16)          Discovered 1997-May-03 by Elst, E. W. at La Silla
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 JQ16 = 2000 CR81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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