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VizieR

B/astorb/astorb Orbits of Minor Planets (Bowell+ 2014)
The catalog of Orbits (2014-01-05) (1078400 rows)
  Name===1998 SD144
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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 26303  Record number assigned by the VizieR team. Should Not be used for identification.

Planet 26303  (i) [1,]+ Asteroid number (blank if unnumbered)
Name1998 SD144  (i) Name or preliminary designation.
CompNameL.H. Wasserman  Orbit Computer.
H14.53 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)   
Narc11059   Orbital arc, days, spanned by observations used in orbit computation.
Nobs1378  Number of observations used in orbit computation.
Epoch2021-03-27 "Y:M:D" (i) Epoch of osculation, yyyymmdd (TDT) (Note 2)   
M108.022273 deg Mean anomaly (Note 3)   
omega279.304829 deg Argument of perihelion (Note 3)   
Omega199.228685 deg Longitude of ascending node (Note 3)   
i 21.794500 deg Inclination (Note 3)   
e 0.07909581  Eccentricity (Note 3)   
a 2.54332105 AU Semimajor axis (Note 3)   
DateOrb2021-03-11 "Y:M:D" Date of orbit computation
CEU 4e-02 arcsec Current Ephemeris Uncertainty (Note 10)   
dCEU 2e-04 arcsec/d Rate of change of CEU (Note 10)   
DateCEU2021-04-28 "Y:M:D" Date of CEU
PEU0 5e-02 arcsec Next Peak Ephemeris Uncertainty (PEU) (Note 11)   
DatePEU02021-05-28 "Y:M:D" Date of PEU0
PEU1 5e-02 arcsec Largest PEU in 10 years from DatePEU0 (Note 11)   
DatePEU12028-01-08 "Y:M:D" Date of PEU1
PEU2 5e-02 arcsec As PEU1, assuming that two observations were made at DatePEU0 (Note 11)   
DatePEU22028-01-08 "Y:M:D" Date of PEU2
mod*   [a*] added or updated (Note 12)   
modDate2021-03-21 "Y:M:D" Date of last modification (Note 12)   
  

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