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173177 (1997 SW4)
Classification: Main-belt Asteroid          SPK-ID: 2173177
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1541005493140343 5.6479e-08  
a 2.155870573160203 6.2385e-09 au
q 1.823649733586254 1.2226e-07 au
i 2.76264594427969 4.1352e-06 deg
node 72.54546125865039 0.00012158 deg
peri 280.5499409285887 0.00012212 deg
M 79.92549185487854 1.1625e-05 deg
tp 2458743.806264183872
(2019-Sep-17.30626418)
3.7359e-05 TDB
period 1156.198638872256
3.17
5.0186e-06
1.374e-08
d
yr
n .3113651823281338 1.3515e-09 deg/d
Q 2.488091412734153 7.1999e-09 au
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      8161 days (22.34 yr)  
   first obs. used      1997-09-23  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58266  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:00:17  

Additional Information
 Earth MOID = .820856 au 
 Jupiter MOID = 2.93408 au 
 T_jup = 3.684 
[ 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 17.1   n/a MPO436860  

173177 (1997 SW4)          Discovered 1997-Sep-23 by Galad, A., Koleny, P. at Modra
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1997 SW4 = 2000 QC204 = 2004 YN35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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