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16825 (1997 VC8)
Classification: Main-belt Asteroid          SPK-ID: 2016825
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02957321090213255 3.2922e-08  
a 2.470891887607954 8.8922e-09 au
q 2.397819680699356 8.0807e-08 au
i 2.735116339434541 3.0557e-06 deg
node 298.0809560488068 8.1145e-05 deg
peri 42.25794002902996 0.0001017 deg
M 55.66026929068998 6.0628e-05 deg
tp 2458981.157977055874
(2020-May-11.65797706)
0.00023909 TDB
period 1418.662346879685
3.88
7.6582e-06
2.097e-08
d
yr
n .2537601711864783 1.3698e-09 deg/d
Q 2.543964094516553 9.1552e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2165  
   data-arc span      12407 days (33.97 yr)  
   first obs. used      1987-02-23  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4567  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:43:18  

Additional Information
 Earth MOID = 1.38682 au 
 Jupiter MOID = 2.55209 au 
 T_jup = 3.482 
[ 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 14.38   n/a E2021B10  
diameter diameter 3.041 km 0.411 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.46 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.438   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16825 (1997 VC8)          Discovered 1997-Nov-06 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 VC8 = 1987 DE3 = 1997 WR47 = 1997 XZ13 = 1999 GX50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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