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JPL Small-Body Database Browser
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26396 Chengjingjie (1999 VQ169)
Classification: Main-belt Asteroid          SPK-ID: 2026396
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05453252423788214 3.6592e-08  
a 2.689877266666323 1.3997e-08 au
q 2.543191469424914 9.6524e-08 au
i 2.872780353635165 4.558e-06 deg
node 309.3883154579291 8.9307e-05 deg
peri 145.9706139878327 0.00010203 deg
M 208.7951122733766 4.8192e-05 deg
tp 2459677.300160369863
(2022-Apr-07.80016037)
0.000216 TDB
period 1611.376863515573
4.41
1.2578e-05
3.444e-08
d
yr
n .2234114241994146 1.7439e-09 deg/d
Q 2.836563063907733 1.4761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      9960 days (27.27 yr)  
   first obs. used      1992-03-02  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58856  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:44:23  

Additional Information
 Earth MOID = 1.56062 au 
 Jupiter MOID = 2.24901 au 
 T_jup = 3.368 
[ 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 15.1   n/a MPO435947  
diameter diameter 5.977 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26396 Chengjingjie           Discovered 1999 Nov. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Cheng Jingjie (b. 1994) was awarded second place in the 2010 Intel International Science and Engineering Fair for her cellular- and molecular-biology project. She attends the Raffles Girls' School, Singapore.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110319/MPCPages.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 1999 VQ169 = 1992 EX32 = 1994 SL2 = 1999 YL28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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