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VizieR

B/astorb/astorb Orbits of Minor Planets (Bowell+ 2014)
The catalog of Orbits (2014-01-05) (1078400 rows)
  Name===2008 SS254
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Note: This is a copy of the Asteroid Observing Services from the Asteroid Database at Lowell Observatory

ColumnValue  Explain   (UCD)
recno 231549  Record number assigned by the VizieR team. Should Not be used for identification.

Planet231549  (i) [1,]+ Asteroid number (blank if unnumbered)
Name2008 SS254  (i) Name or preliminary designation.
CompNameL.H. Wasserman  Orbit Computer.
H16.21 mag Absolute magnitude H parameter (Note 1)   
G 0.15  Slope magnitude parameter (Note 1)   
B-V  mag Color index (see E.F.Tedesco, pp.1090-1138)
Diam  km IRAS diameter (see E.F.Tedesco, pp.1151-1161; catalog II/190)
IRAScl   IRAS Taxonomic classification

EphemEphem  Show the Ephemeride of this Asteroid (from IMCCE)

Xflg 0   [0/31] Planet-crossing code (Note 4)   
Oflg 0   [0/255] Orbit computation code (Note 5)   
Sflg 0   [0/31] Survey observation code (Note 6)   
MPCC 0   [0/7] MPC critical-list code (Note 7)   
LowC 0   [0/5] Lowell Observatory discovery code (Note 8)   
FlaC 0   [0/10] Flagstaff Station Code (Note 9)   
Narc 7368   Orbital arc, days, spanned by observations used in orbit computation.
Nobs 444  Number of observations used in orbit computation.
Epoch2021-03-27 "Y:M:D" (i) Epoch of osculation, yyyymmdd (TDT) (Note 2)   
M104.767334 deg Mean anomaly (Note 3)   
omega 27.292908 deg Argument of perihelion (Note 3)   
Omega252.793597 deg Longitude of ascending node (Note 3)   
i 8.812190 deg Inclination (Note 3)   
e 0.04864091  Eccentricity (Note 3)   
a 2.55087692 AU Semimajor axis (Note 3)   
DateOrb2020-12-28 "Y:M:D" Date of orbit computation
CEU 3e-02 arcsec Current Ephemeris Uncertainty (Note 10)   
dCEU 7e-05 arcsec/d Rate of change of CEU (Note 10)   
DateCEU2021-04-28 "Y:M:D" Date of CEU
PEU0 7e-02 arcsec Next Peak Ephemeris Uncertainty (PEU) (Note 11)   
DatePEU02021-12-22 "Y:M:D" Date of PEU0
PEU1 9e-02 arcsec Largest PEU in 10 years from DatePEU0 (Note 11)   
DatePEU12029-12-07 "Y:M:D" Date of PEU1
PEU2 9e-02 arcsec As PEU1, assuming that two observations were made at DatePEU0 (Note 11)   
DatePEU22029-12-07 "Y:M:D" Date of PEU2
mod*   [a*] added or updated (Note 12)   
modDate2021-01-10 "Y:M:D" Date of last modification (Note 12)   
  

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