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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1004207744233205 3.6684e-08  
a 2.213818228788048 5.7696e-09 au
q 1.991504887820689 8.1262e-08 au
i 5.71621575919224 3.9884e-06 deg
node 252.0016744646265 3.6676e-05 deg
peri 164.6925068380499 4.0856e-05 deg
M 170.5010363634167 1.7542e-05 deg
tp 2458826.682362276887
(2019-Dec-09.18236228)
5.8396e-05 TDB
period 1203.126702075197
3.29
4.7034e-06
1.288e-08
d
yr
n .2992203559101955 1.1697e-09 deg/d
Q 2.436131569755408 6.349e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1565  
   data-arc span      8984 days (24.60 yr)  
   first obs. used      1996-11-02  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:32:32  

Additional Information
 Earth MOID = 1.00383 au 
 Jupiter MOID = 2.83551 au 
 T_jup = 3.642 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456966.5 (2014-Nov-05.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1001442843936149 3.6684e-08  
q 1.992243046574925 8.1236e-08 au
tp 2456418.265447852691
(2013-May-05.76544785)
5.8548e-05 TDB
node 252.0537435821976 3.6713e-05 deg
peri 164.3001467512504 4.0913e-05 deg
i 5.712562357632992 3.9871e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1565  
   data-arc span      8984 days (24.60 yr)  
   first obs. used      1996-11-02  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50802  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:32:32  

Additional Information
 Jupiter MOID = 2.83551 au 
 T_jup = 3.642 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.345690140362474E-15 -2.973994103128763E-15 -3.877277874299939E-13 -6.246034394785013E-15 -1.175782634135279E-13 -6.341277854119469E-16
q -2.973994103128763E-15 6.599360552612028E-15 8.38378952141933E-13 1.351103147192998E-14 2.580330624108642E-13 1.483529144724107E-15
tp -3.877277874299939E-13 8.38378952141933E-13 3.42792096598945E-9 -2.484215276011285E-12 1.066944510941636E-9 6.083029467433376E-13
node -6.246034394785013E-15 1.351103147192998E-14 -2.484215276011285E-12 1.347865308978642E-9 -1.341684081292433E-9 -3.215354323579327E-11
peri -1.175782634135279E-13 2.580330624108642E-13 1.066944510941636E-9 -1.341684081292433E-9 1.673856660148997E-9 3.221317575573661E-11
i -6.341277854119469E-16 1.483529144724107E-15 6.083029467433376E-13 -3.215354323579327E-11 3.221317575573661E-11 1.589724918898437E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.02   n/a MPO636384  
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

Alternate Designations
 1996 XY17 = 1999 RQ106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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