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155432 (1997 SS2)
Classification: Main-belt Asteroid          SPK-ID: 2155432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2268714842687148 6.7826e-08  
a 2.39527454926128 9.7303e-09 au
q 1.851855057039296 1.6597e-07 au
i 2.141779226673059 5.9285e-06 deg
node 10.68411003526508 0.00013481 deg
peri 348.9234336950608 0.00013543 deg
M 161.235807340604 1.226e-05 deg
tp 2458790.056462232888
(2019-Nov-02.55646223)
4.4791e-05 TDB
period 1354.039634229442
3.71
8.2507e-06
2.259e-08
d
yr
n .2658710948331058 1.6201e-09 deg/d
Q 2.938694041483263 1.1938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      9538 days (26.11 yr)  
   first obs. used      1995-02-05  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53182  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:15:29  

Additional Information
 Earth MOID = .847716 au 
 Jupiter MOID = 2.51452 au 
 T_jup = 3.493 
[ 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 17.01   n/a MPCxxxxx  

155432 (1997 SS2)          Discovered 1997-Sep-25 by Wolf, M., Pravec, P. at Ondrejov
Reference: 20070502/Numbers.arcLast Updated: 2007-05-02

Alternate Designations
 1997 SS2 = 2003 FD97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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