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175899 (1999 XW205)
Classification: Main-belt Asteroid          SPK-ID: 2175899
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09370255626483315 3.2061e-08  
a 2.597594371935058 1.4694e-08 au
q 2.354193139145599 8.1993e-08 au
i 21.77357725404013 6.4187e-06 deg
node 311.6133579968522 1.0337e-05 deg
peri 105.8637258616606 6.145e-05 deg
M 45.96106284994318 5.5552e-05 deg
tp 2459005.271601680388
(2020-Jun-04.77160168)
0.00023594 TDB
period 1529.168801524944
4.19
1.2976e-05
3.553e-08
d
yr
n .2354220146533167 1.9977e-09 deg/d
Q 2.840995604724517 1.6071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      7787 days (21.32 yr)  
   first obs. used      1999-12-12  
   last obs. used      2021-04-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:04:37  

Additional Information
 Earth MOID = 1.45333 au 
 Jupiter MOID = 2.42765 au 
 T_jup = 3.310 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458072.5 (2017-Nov-15.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09276128942700478 3.2379e-08  
q 2.357333802256198 8.2795e-08 au
tp 2457473.926270928340
(2016-Mar-26.42627093)
0.00023921 TDB
node 311.6999214949012 1.0337e-05 deg
peri 105.3335816877228 6.2145e-05 deg
i 21.76049468009723 6.4188e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      7787 days (21.32 yr)  
   first obs. used      1999-12-12  
   last obs. used      2021-04-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:04:37  

Additional Information
 Jupiter MOID = 2.42765 au 
 T_jup = 3.310 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.048376247209966E-15 -2.646602332618795E-15 -2.480770586955165E-12 1.603151211621293E-15 -6.480094701623982E-13 -7.91985840185582E-15
q -2.646602332618795E-15 6.854998648376186E-15 6.400462523526151E-12 -5.027773652581836E-15 1.686613470938827E-12 2.048196919123296E-14
tp -2.480770586955165E-12 6.400462523526151E-12 5.72193709799767E-8 -8.104269269642344E-11 1.466728320041072E-8 5.497011285853128E-11
node 1.603151211621293E-15 -5.027773652581836E-15 -8.104269269642344E-11 1.068552471941952E-10 -1.195083091800575E-10 2.434264829897041E-11
peri -6.480094701623982E-13 1.686613470938827E-12 1.466728320041072E-8 -1.195083091800575E-10 3.862013910985145E-9 -8.419465138472807E-12
i -7.91985840185582E-15 2.048196919123296E-14 5.497011285853128E-11 2.434264829897041E-11 -8.419465138472807E-12 4.120059129805337E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.77   n/a MPCxxxxx  

175899 (1999 XW205)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1999 XW205 = 2002 PY20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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