Logo     Department of Earth Sciences, University of Bristol
   >Home  > www > u07b1
HOME
NMAP
Software
Links
Astro Pic of the Day
UKIRT U/07B/1
IRTF 2009A035
RAS Meeting 2009
(printable)

Support Material for UKIRT run U/07B/1


The follow links give the postions and rates for Saturn and the angular offsets between Saturn and Titan for December 2007 and January 2008. The data from JPL has notes on units etc at the bottom of each file.

The pages were generated using the JPL solar system dynamics page

Crude moon data: CLICK HERE (moons.txt)

Notes/Saturn+Moon Figures: CLICK HERE (notes.pdf)

Titan/Saturn offsets in 5 minute intervals:

VMAG=8

Click on link below for table of Titan/Saturn offsets:

02/2008: Titan-Saturn Offsets (5min intervals) [direct from JPL]

12/2007-01/2008: Titan-Saturn Offsets (5min intervals) [direct from JPL]

Columns are:
  • Data and Time (UTC/GMT) [NB. UTC = Hawaii Time + 10hrs]
  • RA of Titan
  • Dec of Titan
  • X: (RA_titan - RA_saturn)*COS(DEC_saturn) [Units: ARCSECONDS]
  • Y: (DEC_titan-DEC_saturn) [Units: ARCSECONDS]
  • PANG: position angle [Units: DEGREES]
  • Titan-Saturn angular separation and visibility.[Units: ARCSECONDS] (NB. This is always positive)

    USE: guide on Titan and use the X/Y offsets to centre on Saturn

    Iapetus/Saturn offsets in 5 minute intervals:

    VMAG=11

    Click on link below for table of Iapetus/Saturn offsets:

    12/2007-01/2008: Iapetus-Saturn Offsets (5min intervals) [direct from JPL]

    Columns are:
  • Data and Time (UTC/GMT) [NB. UTC = Hawaii Time + 10hrs]
  • RA of Iapetus
  • Dec of Iapetus
  • X: (RA_Iapetus - RA_saturn)*COS(DEC_saturn) [Units: ARCSECONDS]
  • Y: (DEC_Iapetus-DEC_saturn) [Units: ARCSECONDS]
  • PANG: position angle [Units: DEGREES]
  • Iapetus-Saturn angular separation and visibility.[Units: ARCSECONDS] (NB. This is always positive)

    USE: guide on Iapetus and use the X/Y offsets to centre on Saturn

    Saturn Positions and Rates for Dec 2007 to Jan 2008

    Click on one of links below for tables of Saturn positions and movement rates

    12/2007-01/2008: Saturn Properties (5min intervals) [direct from JPL]

    12/2007-01/2008: Saturn Properties (5min intervals) [rates converted to dRA/dt=seconds of RA per second of time; dDEC/dt = arcseconds of DEC per second of time

    USE: Guide on a star close to saturn and input the rates

    If additional dates/information is required:

  • Go to http://ssd.jpl.nasa.gov/horizons.cgi
  • Look at the "Current Settings" section.
  • Click on "[change]" to change parameters to the following:
  • Change "Ephemeris Type" to "OBSERVER".
  • Change "Target Body" to "Titan" [or "Saturn"].
  • Change "Observer Location" to "Mauna Kea" (in the observatories list).
  • Change "Time Span" to your required times in UTC (i.e. GMT) the format is "2008-01-20 04:00" for example and set interval to 5 minutes.
  • Change "Table Setting" to "Qunatities=1,6,12" (Titan) or "Qunatities=1,3,13,17" (Saturn) by ticking the appropriate boxes (tick more if required). Also tick the "extra precision" box.
  • Click on the "Generate Ephemeris" button
  • Site © University of Bristol.
    Page last updated: @14:02 GMT 27-Feb-2018