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13835 (1999 XJ20)
Classification: Main-belt Asteroid          SPK-ID: 2013835
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05537952938068701 4.1031e-08  
a 2.846243529689839 1.3827e-08 au
q 2.68861990251279 1.1333e-07 au
i 3.046868948658793 3.8861e-06 deg
node 68.37129867464368 8.0491e-05 deg
peri 248.1877668836653 8.9687e-05 deg
M 178.0525673510263 4.1291e-05 deg
tp 2458133.034421425586
(2018-Jan-14.53442143)
0.00019981 TDB
period 1753.906798047577
4.80
1.278e-05
3.499e-08
d
yr
n .2052560605847167 1.4957e-09 deg/d
Q 3.003867156866887 1.4593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2110  
   data-arc span      16268 days (44.54 yr)  
   first obs. used      1975-11-02  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47572  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:43:50  

Additional Information
 Earth MOID = 1.6768 au 
 Jupiter MOID = 2.15266 au 
 T_jup = 3.303 
[ 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 13.4   n/a MPO502274  
diameter diameter 5.477 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13835 (1999 XJ20)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1998-Feb-23 02:05 00:01 Iris 0.0432587559733223 0.0432580453674494 0.0432594665822596 3.76944617280882 3.76944613755376 2450867.586888450 1.07728483975062 97.3087682025472 34.6966323661474 85.5241926803116 185902.427219084 T 31 CATAB v2.0f-lin.ifort 2020-Nov-13 02:43:56 2020-Nov-13 02:43

Alternate Designations
 1999 XJ20 = 1975 VC4 = 1982 KH = 1985 YS1 = 1997 ET58 = 1998 MP29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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