Last Update: 25th December 2018
This field defines a name for the source table. It may be useful to match the name of the source table with that of your target source. The file will be saved in your working directory, which is as same as 'Project' you entered at the Project tab. For example, if your account ID, project name, and a name of the source table are 'newobs', 'proj1', and 'orion-kl', respectively, your file is saved in
with a name of 'orion-kl.nsource'.
As other tables, a filename should follow the rules described below:
NOTE: You can save the input parameters anytime you want (the nobs allows you to save the source table even if some mandatory fields still blank). The nobs does not check whether these input parameters follow the rules at that time.
You can use this space to write any note about the source table. A character limit is 100, and a line break is prohibited.
Choose a type of your target celestial object. For the 2018-2019 observing season, you can only choose 'extra-Solar objects'.
The name of your target source. Basic rules for the source name is as follows:
Additional Note: The source name should be in the Simbad, NED, or VizieR database, since the data will be open at our science data archive system. You can check whether the target name in the database using the following link: Sesame name resolver.
You may use this field to distinguish the details of the target source.
As long as a character limit of 16 is followed, you can write anything in this field.
ex. 1) northern arm
ex. 2) X-ray peak
Since velocity is not meaningful for continuum observations, you just fill this field with 0.
No need to change these fields for continuum observationss.
A choice of the velocity frame is only LSR (Local Standard of Rest). The heliocentric frame is not implemented.
Choose the coordinate system from 'Equatorial (J2000)', 'Equatorial (B1950)', and 'Galactic'.
If you chose Equatorial coordinates, you need to fill these forms in the unit of RA/Dec.
Format: hh mm ss.sss, ±dd mm ss.ss
You may omit '+' sign and write minimum required numbers.
ex.) if the target coordinate is (RA, Dec) = (1h 23m 45.67s, +8°9' 12.34''), the 'nobs' accepts both following expressions:
(01 23 45.670, +08 09 12.34) or (1 23 45.67, 8 9 12.34)
If you chose 'Galactic' at 'Coordinate System', the source coordinate should be written in the Galactic coordinate. For the 2018-2019 observing season, the 'nobs' can accept Galactic Longitude of 0-360 deg (the 'nobs' cannot accept <0 deg and >360 deg).
Pointing accuracy of the Nobeyama 45-m telescope should be checked every 1-1.5 hours. This can be done with an observation of H2O (22 GHz), SiO maser (43 and 86 GHz-bands), or continuum which are small enough to regard as a point source. The representative continuum sources and their positions are listed in continuum source list.Scroll back to the Top