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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186484698449509 3.4685e-08  
a 2.749577339472753 1.2447e-08 au
q 2.423344195423959 9.8339e-08 au
i 4.132737825145617 3.5864e-06 deg
node 77.59876949337244 5.5638e-05 deg
peri 312.4550602954798 5.8208e-05 deg
M 267.0814794125664 1.88e-05 deg
tp 2459430.330394593695
(2021-Aug-03.83039459)
8.8395e-05 TDB
period 1665.318615443573
4.56
1.1308e-05
3.096e-08
d
yr
n .216174848861646 1.4679e-09 deg/d
Q 3.075810483521546 1.3924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      9444 days (25.86 yr)  
   first obs. used      1994-12-07  
   last obs. used      2020-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:45:11  

Additional Information
 Earth MOID = 1.4312 au 
 Jupiter MOID = 2.35014 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456941.5 (2014-Oct-11.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209904483950852 3.4611e-08  
q 2.413098222762003 9.8082e-08 au
tp 2457769.720534799474
(2017-Jan-16.22053480)
8.1894e-05 TDB
node 77.60880401474708 5.5607e-05 deg
peri 313.1435837327975 5.8088e-05 deg
i 4.13629659589168 3.5891e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      9444 days (25.86 yr)  
   first obs. used      1994-12-07  
   last obs. used      2020-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:45:11  

Additional Information
 Jupiter MOID = 2.35014 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.197926528422668E-15 -3.375175355296774E-15 -6.174343478033211E-13 3.356694504941472E-15 -1.188820517687185E-13 6.967905215676657E-17
q -3.375175355296774E-15 9.620118473790412E-15 2.022673158910893E-12 -1.042836139878409E-14 3.830789330634611E-13 -1.766921824408571E-17
tp -6.174343478033211E-13 2.022673158910893E-12 6.706570704021897E-9 -1.626748881780915E-11 1.394172657713968E-9 1.138941233663318E-12
node 3.356694504941472E-15 -1.042836139878409E-14 -1.626748881780915E-11 3.09219337659393E-9 -3.087213149887042E-9 -8.15920380774034E-13
peri -1.188820517687185E-13 3.830789330634611E-13 1.394172657713968E-9 -3.087213149887042E-9 3.374249892734478E-9 1.036023209284703E-12
i 6.967905215676657E-17 -1.766921824408571E-17 1.138941233663318E-12 -8.15920380774034E-13 1.036023209284703E-12 1.288188145974934E-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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