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JPL Small-Body Database Browser
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49936 (1999 XD180)
Classification: Main-belt Asteroid          SPK-ID: 2049936
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1484604246824599 3.4706e-08  
a 2.357578528814324 7.9407e-09 au
q 2.0075714192043 8.1337e-08 au
i 9.153822001336648 4.4318e-06 deg
node 51.01396551036359 2.3637e-05 deg
peri 146.7336378502815 2.7922e-05 deg
M 61.75336419944036 1.448e-05 deg
tp 2458373.693341850130
(2018-Sep-12.19334185)
5.2945e-05 TDB
period 1322.201599742044
3.62
6.6801e-06
1.829e-08
d
yr
n .2722731541621447 1.3756e-09 deg/d
Q 2.707585638424347 9.1196e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1309  
   data-arc span      10192 days (27.90 yr)  
   first obs. used      1991-11-03  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47421  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:44:17  

Additional Information
 Earth MOID = 1.0112 au 
 Jupiter MOID = 2.26103 au 
 T_jup = 3.521 
[ 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 14.7   n/a MPO436133  

49936 (1999 XD180)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XD180 = 1998 SJ160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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