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Announcements


Running Herschel Spot on recent versions of Mac OS X

HIFI users often need to run the observation planning tool HerschelSpot or HSpot to understand HIFI data. Recent versions of Mac OS X may refuse to start HSpot, with a message that PowerPC applications can’t be run. See running HSpot on Mac for a workaround.


The NHSC Helpdesk has been upgraded to a more secure and fully-featured version. Now you can enter a ticket from the web interface without logging in or registering.


Videos and presentations are online for all our workshops on Herschel data reduction that took place over the mission. See the https://nhscsci.ipac.caltech.edu/sc/index.php/Workshops/PastWorkshops for all the links.


SIMPLE: Version 1.1 of PACS photometer mapping and photometry

SIMPLE (Simplified Interface Making PACS Look Easy) is a command line interface for PACS photometer data reduction. It allows very simple (hence the name!) reduction of large PACS datasets. SIMPLE 1.1.2 has been released, featuring extended emission mapping with JScanam and a batch mode for processing many different observations with the same mapping and photometry parameters.

For more information please visit the SIMPLE webpage.


Presentations available for our last series of introductory webinars: Using Herschel Data

During July and August 2014, NHSC staff conducted a series of online webinars, directed to astronomers who have never used Herschel data. See the detailed agenda or the individual links for these sessions:


HIFI Electrical Standing Wave correction tool now available in HIPE

Nearly half of all HIFI observations in the Herschel Science Archive were taken in the Hot Electron Bolometer mixer bands 6 and 7. These bands can often have non-sinusoidal ripples, not well corrected in standard processing. There is now a task in HIPE, v12.1 and later, called hebCorrection that can mitigate the electrical standing waves.

More information from the HIFI calibration page, under Outstanding Calibration Issues.


The dance of the schedules

During the cryogenic mission, scheduling observations was always a complicated and highly technical task. ESA has produced a small movie that shows the scheduling of all the observations as a function of time. The movie can be found here.


Which map-maker is better? A SPIRE comparison

In order to provide guidance for future development of the SPIRE scan-map data reduction pipeline, the SPIRE carried out a test campaign on SPIRE map-making in 2013. The results of comparing different map-makers can be found here.


Herschel Data Portal released from IRSA

NASA’s Infrared Science Archive (IRSA) has released a significantly updated version of its Herschel portal. It allows searches by list of coordinates and includes not only links the the data but also to user-provided datasets. You can access it from the Herschel page at IRSA. If you are a member of a Herschel KP or OT program and would like IRSA to provide a link to your data let us know.


Herschel has run out of helium!

The end of the cryogenic phase of the Herschel mission was declared today 29 April 2013 at 15:20:01 (UTC). At this time, an increase in the temperature of the Herschel Space Observatory was confirmed by the sensors on-board the spacecraft, indicating the exhaustion of the liquid Helium in the cryostat. This increase in temperature makes the instruments unusable.

By late May 2013, the satellite will be parked in an orbit around the Sun and will be turned off. Herschel made over 40 000 scientific observations, in more than 25 000 hours of science data from about 600 observing programs. The end of the cryogen marks the beginning of the Archival phase of the mission, in which the rich Herschel dataset will be optimized to serve as a Legacy for future researchers.

For more information, please see the NASA press release, the ESA Press Release, the ESA Space Science Portal, and the SciTech web releases.


Map-making workshop presentations now available

The NHSC and HSC held a multi-day workshop on the comparison of map-making software and the photometry of spatially extended sources in PACS and SPIRE maps. The workshop was open to all Herschel observers. The presentations are now available online.

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Page last modified on May 03, 2016, at 12:11 PM