[cssm] [CSSM] SMURF forbidden pass use case

Roquebert Jean-Michel Jean-Michel.Roquebert at cnes.fr
Fri Nov 13 16:07:07 UTC 2020

Hi Martin,

Thanks very much for this very quick and very positive answer.
I will have a look at it but it seems that this may effectively be the solution.

Best regards,


De : SMWG <smwg-bounces at mailman.ccsds.org> De la part de Martin.Unal at esa.int
Envoyé : vendredi 13 novembre 2020 16:59
À : Ciocirlan Claudia <Claudia.Ciocirlan at cnes.fr>
Cc : smwg at mailman.ccsds.org
Objet : Re: [cssm] [CSSM] SMURF forbidden pass use case


I believe that if you use the SMURF for constraint based planning, you have the possibility to provide go/no go time window.

3.11.4        CLASS TimeWindows
        The TimeWindows class is optional and may be used to submit a set of time windows.
        Each instance of the TimeWindows class must contain 1 or more instances of the TimeWindow class described in section 3.11.5.
NOTE        -        The TimeWindows class is a specialization of class Constraints described in 3.10.2 and the generic description of the parameters can be found there.
        The use of the TimeWindows class allows the specification of a set of one or more time windows that must either all be included or all excluded in the resulting schedule.
        Table 3-37 specifies the use of the parameters in the TimeWindows.
Table 3-37: Class TimeWindows Parameters


Data Type

Data Units


If true indicates that the time range specified by the window is considered to be included.
If false indicates that the time range specified by the window is considered to be excluded.



1.1.2        CLASS TimeWindow

Martin UNAL
Ground Operation Manager
Ground Facilities Ops HSO - ONO
Robert-Bosch Strasse 5
64 293 Darmstadt
Tel +49 6151 90 2959

From:        "Ciocirlan Claudia" <Claudia.Ciocirlan at cnes.fr<mailto:Claudia.Ciocirlan at cnes.fr>>
To:        "smwg at mailman.ccsds.org<mailto:smwg at mailman.ccsds.org>" <smwg at mailman.ccsds.org<mailto:smwg at mailman.ccsds.org>>
Date:        13/11/2020 16:43
Subject:        [cssm] [CSSM] SMURF forbidden pass use case
Sent by:        "SMWG" <smwg-bounces at mailman.ccsds.org<mailto:smwg-bounces at mailman.ccsds.org>>

Dear all,

Hope you are safe and healthy.

We've been discussing with Jean-Michel on the different use cases of the SMURF and we might have one use case for which we are unable to find a response.

In our existing tools we have the possibility to mark a pass as forbidden when requesting for a schedule request. A pass is identified by a station, a spacecraft, an AOS and a LOS. The ground control center has the possibility to compute AOS and LOS for the different passes. This way our planning tool will be able to fulfill all constraints without booking the forbidden pass. The scenario we managed to make was that the scheduling tool plans for a list of passes regarding to the constraints and then if the pass is present, then we need to do a DeleteSrvPkg and  then reschedule again and request for another pass.

Do you have a solution for our use case, a simple one if possible?

Best regards,

Claudia Ciocirlan

Claudia Ciocirlan CNES/DNO/OP/SSO

Mission Operations Ground Segment
phone : +33 (0)5 61 28 17 11
email : claudia.ciocirlan at cnes.fr<mailto:claudia.ciocirlan at cnes.fr>

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