SPITZMASTR - Spitzer Space Telescope Observation Log
This database table contains the Spitzer Space Telescope (SST) log of
executed and scheduled observations, and is updated on a weekly basis.
Spitzer is the fourth and final element in NASA's family of Great
Observatories and represents an important scientific and technical bridge to
NASA's Astronomical Search for Origins program. The SST Observatory carries
an 85-cm cryogenic telescope and 3 cryogenically cooled science instruments
capable of performing imaging and spectroscopy in the 3.6 to 160 micron (um)
range. Spitzer was launched on a Delta 7920H from Cape Canaveral into an
Earth-trailing heliocentric orbit in August 2003. While the Spitzer cryogenic
lifetime requirements are 2.5 years, current estimates indicate that
acheiving a goal of a 5-year cryogenic mission is possible. For more overview
information, refer to the Spitzer Science Center (SSC) Observatory and
Instruments Overview at http://ssc.spitzer.caltech.edu/obs/overview.html.
The purpose of this HEASARC table is to help users, particularly those in the
high-energy astronomy community, learn about which targets Spitzer has
observed or will shortly observe. This table does not at this time have links
from table entries to Spitzer data products. Once a particular Spitzer
dataset of interest is identified, the SSC Archives/Analysis web page at
http://ssc.spitzer.caltech.edu/archanaly/ should be used to access the
The SPITZMASTR database table was last updated on 23 February 2009.
The information in this table has been derived from information
available at the SSC website (see Provenance below).
The information in this table has been derived from the
following files obtained from the SSC website:
The schedule of Spitzer science observations as executed:
The schedule of Spitzer science observations as planned:
The list of all approved Spitzer science programs:
Notice that this table contains primarily observations (identified by their
AOR key value) from the first file above, plus observations from the second
file which have been planned, but not yet been executed, so that a given
observation appears only once in this HEASARC table. The first two files
above are updated by the SSC on a weekly basis, usually on Friday. The
HEASARC also updates the present table on a weekly basis, usually on Sunday.
Thus, it should most of the time be current, except over the weekend.
The designation of the target of the observations, truncated to the
first 12 characters.
The Right Ascension of the target pointing in the selected equinox. This was
given in J2000 equatorial coordinates to a precision of 0.01 seconds of time
in the originating tables. No positions are provided for solar system target
pointings and their positions have all been set to null in this HEASARC
table. To search for observations of, say, Neptune, then, the user should
perform a search of the string "Neptune*" in the name parameter field.
The Declination of the target pointing in the selected equinox. This was
given in J2000 equatorial coordinates to an apparent precision of 0.1
arcseconds in most cases in the originating tables. No positions are provided
for solar system target pointings and their positions have all been set to
null in this HEASARC table.
The Galactic Longitude of the target pointing.
The Galactic Latitude of the target pointing.
The last name of the Principal Investigator of the program under
which the target was observed, truncated to the first 10 characters.
The first name of the Principal Investigator of the program under
which the target was observed, truncated to the first 8 characters.
The Spitzer observation program identifier, or pid, under
which the target was observed.
The category of the observation program under which the target was observed:
DDT for Director's Discretionary Time, GO for General Observer, GTO for
Guaranteed Time Observation, and Legacy for the Legacy Science program. Refer
to http://ssc.spitzer.caltech.edu/geninfo/research.html for a fuller
The SSC name identifier for the observation program under which the target
The title of the Spitzer observation program under
which the target was observed.
The Astronomical Observation Template (AOT) which was used to
construct the AOR which unambiguously defines the parameters of the
observation. There are eight AOTs, one for each of the eight Spitzer
The actual or planned duration of the observation (strictly
speaking, of the Astronomical Observation Request or AOR that completely
describes the observation), in minutes.
The start time of the executed or planned observation, in UTC.
The Astronomical Observation Request (AOR) key which uniquely
defines the observation
The Astronomical Observation Request (AOR) label.
The status of the observation: scheduled or observed. For the
present puposes, a value of 'observed' means that the observation is
listed at http://ssc.spitzer.caltech.edu/approvdprog/sched/obs/alltogether.txt.
Questions regarding the SPITZMASTR database table can be addressed to the
HEASARC User Hotline.
If you have any problems, please consult the help
page or mail firstname.lastname@example.org