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173355 (1999 YP2)
Classification: Main-belt Asteroid          SPK-ID: 2173355
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1251735776522806 5.7523e-08  
a 2.554088494795792 1.5408e-08 au
q 2.234384100261675 1.4835e-07 au
i 9.937919915769601 6.5161e-06 deg
node 100.5771210786086 2.2192e-05 deg
peri 216.8108652280389 2.9023e-05 deg
M 194.3100411420986 1.8533e-05 deg
tp 2459886.692595385268
(2022-Nov-03.19259539)
7.9604e-05 TDB
period 1490.913124980332
4.08
1.3491e-05
3.694e-08
d
yr
n .2414627612891591 2.185e-09 deg/d
Q 2.87379288932991 1.7337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      355  
   data-arc span      8235 days (22.55 yr)  
   first obs. used      1998-09-22  
   last obs. used      2021-04-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51973  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:02:36  

Additional Information
 Earth MOID = 1.2267 au 
 Jupiter MOID = 2.38652 au 
 T_jup = 3.407 
[ 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 16.07   n/a MPCxxxxx  

173355 (1999 YP2)          Discovered 1999-Dec-16 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1999 YP2 = 2005 GS47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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