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17721 (1997 XT10)
Classification: Main-belt Asteroid          SPK-ID: 2017721
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2624369440167554 4.3123e-08  
a 3.071769358737682 1.532e-08 au
q 2.265623595506257 1.3184e-07 au
i 13.30109611723794 4.6875e-06 deg
node 304.3010449587103 1.8116e-05 deg
peri 216.6365767111935 1.9546e-05 deg
M 97.99239229999202 7.9212e-06 deg
tp 2458665.232108925604
(2019-Jun-30.73210893)
4.1696e-05 TDB
period 1966.442866267266
5.38
1.4711e-05
4.028e-08
d
yr
n .1830716804314574 1.3696e-09 deg/d
Q 3.877915121969108 1.934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1401  
   data-arc span      12258 days (33.56 yr)  
   first obs. used      1987-01-26  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48955  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:19:21  

Additional Information
 Earth MOID = 1.29004 au 
 Jupiter MOID = 1.27288 au 
 T_jup = 3.137 
[ 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 13.26   n/a E2021B10  
diameter diameter 6.253 km 1.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.285   0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17721 (1997 XT10)          Discovered 1997-Dec-10 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 XT10 = 1987 BG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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