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JPL Small-Body Database Browser
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59361 (1999 DW2)
Classification: Main-belt Asteroid          SPK-ID: 2059361
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 .09449231781639347 3.0968e-08  
a 2.336694778648988 9.2299e-09 au
q 2.115895072984981 7.2934e-08 au
i 5.707119467191849 4.1085e-06 deg
node 191.4590526057286 3.3947e-05 deg
peri 262.6532821807924 4.0546e-05 deg
M 35.32986881721284 2.2248e-05 deg
tp 2458872.461395186705
(2020-Jan-23.96139519)
8.0559e-05 TDB
period 1304.672201622475
3.57
7.7301e-06
2.116e-08
d
yr
n .2759313792018473 1.6349e-09 deg/d
Q 2.557494484312996 1.0102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      10161 days (27.82 yr)  
   first obs. used      1992-04-07  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:46:48  

Additional Information
 Earth MOID = 1.1415 au 
 Jupiter MOID = 2.58426 au 
 T_jup = 3.554 
[ 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 16.0   n/a MPO502545  

59361 (1999 DW2)          Discovered 1999-Feb-20 by Urata, T. at Oohira
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 DW2 = 2001 US4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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