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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1179683320393146 3.4648e-08  
a 2.74805795343427 1.2629e-08 au
q 2.423874140320256 9.8017e-08 au
i 4.130540378491458 3.5633e-06 deg
node 77.56719877677371 5.5362e-05 deg
peri 312.6577864295484 5.7945e-05 deg
M 310.0947981571841 1.899e-05 deg
tp 2459431.164400721372
(2021-Aug-04.66440072)
8.8552e-05 TDB
period 1663.938451170652
4.56
1.147e-05
3.14e-08
d
yr
n .2163541564573645 1.4914e-09 deg/d
Q 3.072241766548283 1.4119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1464  
   data-arc span      9475 days (25.94 yr)  
   first obs. used      1994-12-07  
   last obs. used      2020-11-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:03:16  

Additional Information
 Earth MOID = 1.43058 au 
 Jupiter MOID = 2.35349 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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