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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201579420909502 4.1159e-08  
a 2.746142257519471 1.3815e-08 au
q 2.416171455166936 1.1303e-07 au
i 4.135840625632019 3.8982e-06 deg
node 77.60161704038866 6.5519e-05 deg
peri 312.7313156250677 6.7722e-05 deg
M 180.3180955564626 1.8918e-05 deg
tp 2459430.130700530113
(2021-Aug-03.63070053)
9.0232e-05 TDB
period 1662.198834745169
4.55
1.2543e-05
3.434e-08
d
yr
n .2165805873971699 1.6343e-09 deg/d
Q 3.076113059872007 1.5475e-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 = 1.42342 au 
 Jupiter MOID = 2.34839 au 
 T_jup = 3.333 
[ 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 14.2   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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