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150343 (1999 XS99)
Classification: Main-belt Asteroid          SPK-ID: 2150343
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693428812129277 4.3161e-08  
a 2.234640976264139 7.999e-09 au
q 1.856220434867101 9.5633e-08 au
i 5.721155286618149 4.9802e-06 deg
node 54.31396703900847 4.2192e-05 deg
peri 350.130328658425 4.4572e-05 deg
M 126.7219185509369 1.3193e-05 deg
tp 2458771.003822784986
(2019-Oct-14.50382278)
4.4384e-05 TDB
period 1220.141121326654
3.34
6.5513e-06
1.794e-08
d
yr
n .2950478380800522 1.5842e-09 deg/d
Q 2.613061517661179 9.3536e-09 au
  Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      7815 days (21.40 yr)  
   first obs. used      1999-10-22  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:18:09  

Additional Information
 Earth MOID = .864862 au 
 Jupiter MOID = 2.77492 au 
 T_jup = 3.614 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO502899  
diameter diameter 1.682 km 0.292 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.189   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

150343 (1999 XS99)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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