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175818 (1999 SZ)
Classification: Main-belt Asteroid          SPK-ID: 2175818
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113290153314323 4.206e-08  
a 2.366482273603906 1.4553e-08 au
q 2.103024132284294 1.0001e-07 au
i 6.01023285513012 5.4293e-06 deg
node 174.0897393658843 4.3726e-05 deg
peri 237.2513223351965 5.0658e-05 deg
M 264.9660736934118 2.7372e-05 deg
tp 2459551.518076496229
(2021-Dec-03.01807650)
0.00010281 TDB
period 1329.69890279996
3.64
1.2266e-05
3.358e-08
d
yr
n .2707379837961394 2.4974e-09 deg/d
Q 2.629940414923518 1.6173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      261  
   data-arc span      7643 days (20.93 yr)  
   first obs. used      1999-09-16  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55975  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:57  

Additional Information
 Earth MOID = 1.11912 au 
 Jupiter MOID = 2.69998 au 
 T_jup = 3.532 
[ 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 16.83   n/a E2021B55  

175818 (1999 SZ)          Discovered 1999-Sep-16 by Spacewatch at Kitt Peak
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1999 SZ = 2005 GG173 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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