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21316 (1996 XY17)
Classification: Main-belt Asteroid          SPK-ID: 2021316
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1003084944831046 3.7154e-08  
a 2.214149006204296 6.2458e-09 au
q 1.992051052830681 8.2683e-08 au
i 5.715880705911323 4.1458e-06 deg
node 252.00571792215 3.8596e-05 deg
peri 164.7571375605836 4.4041e-05 deg
M 111.78760854767 1.9587e-05 deg
tp 2458826.819996699654
(2019-Dec-09.31999670)
6.562e-05 TDB
period 1203.396359720486
3.29
5.0919e-06
1.394e-08
d
yr
n .2991533064663895 1.2658e-09 deg/d
Q 2.436246959577911 6.8723e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1370  
   data-arc span      8843 days (24.21 yr)  
   first obs. used      1996-11-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51068  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 19:28:31  

Additional Information
 Earth MOID = 1.00406 au 
 Jupiter MOID = 2.83473 au 
 T_jup = 3.642 
[ 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 14.97   n/a E2021B10  
diameter diameter 2.094 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.367   0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21316 (1996 XY17)          Discovered 1996-Dec-07 by Spacewatch at Kitt Peak
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 XY17 = 1999 RQ106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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