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JPL Small-Body Database Browser
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243687 (1999 XU146)
Classification: Main-belt Asteroid          SPK-ID: 2243687
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02477662558567343 7.9657e-08  
a 2.626872469825595 2.6303e-08 au
q 2.561787434179414 2.0733e-07 au
i 12.73876969741015 8.7858e-06 deg
node 69.62604136733596 3.3886e-05 deg
peri 329.7576618050917 0.00015143 deg
M 224.5174874925517 0.00014669 deg
tp 2459185.744918652124
(2020-Dec-02.24491865)
0.00063407 TDB
period 1555.094947793957
4.26
2.3357e-05
6.395e-08
d
yr
n .2314971188805498 3.477e-09 deg/d
Q 2.691957505471777 2.6954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      9119 days (24.97 yr)  
   first obs. used      1993-05-20  
   last obs. used      2018-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62759  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:50:35  

Additional Information
 Earth MOID = 1.57764 au 
 Jupiter MOID = 2.43958 au 
 T_jup = 3.366 
[ 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 16.3   n/a MPO437137  

243687 (1999 XU146)          Discovered 1999-Dec-07 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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