2007/02/14: slight change Section 6.5.4.1, “Concatenation of observations” to clarify rules on permitted chainings.

2007/02/15: Inconsistency noticed between HSpot and PACS documentation. Short wavelength cut-off for PACS changed in Section 3.3, “Spectroscopy with Herschel” to be consistent with HSpot (also changed in PACS Manual by BA). Resolution information updated to give information on 1st, 2nd and 3rd order performance.

2007/04/11: Resolution information updated to give updated range information on 1st, 2nd and 3rd order performance in Section 3.3, “Spectroscopy with Herschel” to be consistent with values defined in SCR-3091.

2007/04/30: A sub-section is added Section 6.3.2.1, “What is a NAIF ID?” to explain the origin of NAIF IDs.

2007/05/29: Some typos corrected in Chapter 5, Ground Segment.

2007/05/31:

Updates of concatenation rules in Section 6.5.4.1, “Concatenation of observations”.

Updates of overhead rules and application in Section 6.7, “Observing overheads”.

Updates of calibration overhead rules and application in Section 6.7.3, “Internal calibration”.

Updates of constrained observation rules and application in Section 6.7.4, “Constrained observations”.

Correct HIFI exclusion half-angles in Table 2.3, “Nominal exclusion angles (half-cones) for observation towards major planets”.

Add SPIRE PACS parallel mode exclusion half-angles as a footnote in Table 2.3, “Nominal exclusion angles (half-cones) for observation towards major planets”.

Update PACS sensitivities in Table 3.2, “The main spectroscopic capabilities of PACS, SPIRE and HIFI. For more details please check the relevant instrument manual.”.

2007/08/01:

Update to the proposal submission procedure in Section 6.2.3, “Proposal presentation and retrieval” to take into account the fact that proposers must now use the HerschelFORM PDFLatex pakage to prepare their scientific case.

Update to the observing modes described in Section 6.3, “Types of target” to eliminate the cluster and shadow observing target types that currently seem unlikely to be implemented.

Add a section Section 6.3.2.2, “Solar system object ephemeris accuracy” on the accuracy of the available ephemerides for moving targets.

Add a section Section 6.3.2.3, “What accuracy of ephemeris is required?” on the required accuracy of ephemerides for moving targets for them to be observable by Herschel.

2010/04/30:

Completed revised and updated for OT1 Call.

2010/07/08:

Some small changes to Chapter 1.

2010/10/29:

Added some notes on Solar System Object scheduling and ephemerid accuracy to Chapter 6.

2011/02/03:

Added notes on response time for urgent schedule change requests and ToOs.

2011/03/31:

Complete revision and update of content in line with current knowledge.

2012/02/27:

Some small updates to Section 6.2.3, plus a large number of other minor changes to bring information up to date.

2012/03/08:

One further small change in Section 6.2.3 to include additional information and bring things totally up to date with latest knowledge.

2012/07/23:

Full updating of information in the light of the current state of knowledge and observatory practices.

Update of the information on full and limited visibility of targets (Section 6.2.3) to conform to updated scheduling rules for Mission Planning.

2012/09/25:

Small update to Table 2.2 to clarify telescope f-ratio data.

2013/02/12:

Changes in ToO submission instructions to reflect the latest upgrade in HSpot functionality.

2013/09/18:

Completion of a major update to the entire manual for post-Operations.

2013/12/18:

Completion of a further major update and expansion of the manual as a legacy version for post-Operations, including the incorporation of considerable additional information.

2014/01/16:

Correction of some typos.

2014/02/06:

Cumulative small updates.

2014/02/28:

Further cumulative small updates.

2014/03/07:

Corrected information on the post-injection transfer orbit to L2 and added some additional details.