Radio Astronomy Observatory
UMRAO Database Interface
For background information, see the discussion of the U of M Radio Astronomy Observatory. The database was last updated on Jun 08, 1999. (Click for revision history.)
The data included in the web database are currently being edited and prepared
for publication and are expected to be included in a compendium paper to be
submitted to ApJ Supplement in summer 2001. No light curves, or analysis
of these data, may be included in papers submitted for publication
without the consent and knowledge of Hugh or Margo Aller. The data included
on this website are provided as a service to the astronomical community with
the specific intent that they be used for calibrating data obtained with
other radio instruments, for placing observations obtained with other
instruments in context, and for selecting currently active objects or objects
with specific variability properties for inclusion in future observing
proposals with other instruments. If any publication makes use of these data
in these specified ways, please add the following acknowledgement: `This
research has made use of data from the University of Michigan Radio Astronomy
Observatory which is supported by funds from the University of Michigan.'
The database is currently accessible with returned data in the form of ascii
tables. All our data (going back to 1965 for some sources) are now on line.
Graphical output will eventually be available. To browse the primary sources
for which data may be accessed, scroll to the listings below, or "hop"
into each two-hourly range of sources -- which facilitates locating sources
with a particular RA. The list covers UMRAO's best-observed objects; to see
what other sources the database contains, use the button to bring up a list
of every object in the database.
Once you are ready to query the database, click on the buttons corresponding
to the sources that interest you and/or enter a source name by hand using the
1950 position ID (e.g., 1652+398) in the appropriate dialog box; type your full
e-mail address into the dialog box, change the start and stop dates and
averaging interval as desired, select the "mode" Then click on the "dispatch
box". NOTE: using the "hop to" buttons will clear all your entries, and so
you must use "scroll" to move through the document once you start entering
values.
The start and stop dates (there are defaults) should be in YYMMDD format.
The default start date (900101) will bring up the recent data, but for many
sources earlier data are also available.
The averaging interval (the default is 30 days) should be given in days, and
lie between 1 and 10000. Choose one of
S only ,
SPX ,
SQU
for the format of the returned data. Choose What data exist? for a report on
what data are available in the database for the checked sources. (Dates and
averaging not then used.)
Whats New:
As time permits we are adding plots of selected sources to the database. The
plots are denoted by the symbol GIF following a
source name. With the exception of OJ 287 (where 15 day averages are shown),
all the plots show month averages of the data.
Questions and input appreciated:
| Email us! | No email, or want to be anonymous? (We don't look at this input frequently!) |
|---|---|
 umrao@astro.lsa.umich.edu |
Go to:
the Astronomy Department homepage;
Document prepared by pah/12-94. Revised pah/07-00.
