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JPL Small-Body Database Browser
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13616 (1994 XQ4)
Classification: Main-belt Asteroid          SPK-ID: 2013616
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186484609392101 4.1238e-08  
a 2.749577334782364 1.4106e-08 au
q 2.423344215777102 1.1324e-07 au
i 4.132733921046838 3.8943e-06 deg
node 77.59875578840696 6.5561e-05 deg
peri 312.4550527011462 6.7819e-05 deg
M 267.0814974735885 1.9413e-05 deg
tp 2459430.330309945638
(2021-Aug-03.83030995)
9.1397e-05 TDB
period 1665.318611182378
4.56
1.2815e-05
3.509e-08
d
yr
n .2161748494147913 1.6635e-09 deg/d
Q 3.075810453787628 1.5779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      8921 days (24.42 yr)  
   first obs. used      1994-12-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52715  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:10:51  

Additional Information
 Earth MOID = 1.4312 au 
 Jupiter MOID = 2.35014 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456498.5 (2013-Jul-25.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209839592989531 4.113e-08  
q 2.414042586867617 1.1314e-07 au
tp 2456109.333053101715
(2012-Jun-30.83305310)
8.0721e-05 TDB
node 77.61459363621132 6.5506e-05 deg
peri 313.3862746163961 6.7681e-05 deg
i 4.136460730782018 3.8987e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      8921 days (24.42 yr)  
   first obs. used      1994-12-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52715  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:10:51  

Additional Information
 Jupiter MOID = 2.35014 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.691674442484924E-15 -4.626465176610372E-15 -4.898553939109737E-13 4.277979493907302E-15 -1.35339931093534E-13 1.899869790296153E-16
q -4.626465176610372E-15 1.280162421170583E-14 1.551395679271223E-12 -1.129182488070516E-14 4.206244856741569E-13 -4.129724297842269E-16
tp -4.898553939109737E-13 1.551395679271223E-12 6.515824388529648E-9 4.862389556795614E-13 1.403932153957887E-9 2.352203388874972E-13
node 4.277979493907302E-15 -1.129182488070516E-14 4.862389556795614E-13 4.291086119498334E-9 -4.279617240963484E-9 -3.131806021060618E-11
peri -1.35339931093534E-13 4.206244856741569E-13 1.403932153957887E-9 -4.279617240963484E-9 4.580776609706216E-9 3.129459999208403E-11
i 1.899869790296153E-16 -4.129724297842269E-16 2.352203388874972E-13 -3.131806021060618E-11 3.129459999208403E-11 1.519996361424858E-11

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 14.2   n/a MPO449045  
diameter diameter 6.018 km 0.266 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.147   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13616 (1994 XQ4)          Discovered 1994-Dec-07 by Kobayashi, T. at Oizumi
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 XQ4 = 1998 SF65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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