[Sls-slp] FW: SLS-SLP Meeting Berlin: Slides for TC Retransmissions

[Kazz, Greg J]

Yves,

I am following up on an action item assigned to me at the Colorado Springs meeting in the SLS area. 

The action is to request the CSS-CSTS WG examine the potential impact the attached proposed ESA change to the CCSDS Telecommand Standards may have regarding the addition of a new capability to allow for repeated retransmission of the same TC frame. For example, if this proposal is approved one would be able to populate the new retransmission repeat parameter and use it to request the repetition of a series of frame numbers such as 1,1,1,1,1,1,2,2,2,2,2,2, etc. This change was proposed by ESA in particular to support the LISA - Pathfinder mission in the early acquisition phase since it will be tumbling and may require commanding in a contingency mode.

Attached is an overview of the proposal by Margorie de Lande Long as well as a Zip file containing the proposed changes to the CCSDS SLS area documents. 

The SLS-SLP WG believes these changes may potentially impact both FSP and FCLTU services. However, we request the CSS-CSTS WG make an assessment, so SLS-SLP can factor that into the decision process of either approving or disapproving the changes.

Please let me know if you have any questions and thanks in advance for your support.

best regards,

Greg Kazz
CCSDS SLS-SLP WG Chair

-----Original Message-----
From: Gian.Paolo.Calzolari at esa.int [mailto:Gian.Paolo.Calzolari at esa.int] 
Sent: Friday, April 24, 2009 4:00 PM
To: Kazz, Greg J
Cc: Marjorie de Lande Long
Subject: Fw: SLS-SLP Meeting Berlin: Slides for TC Retransmissions

BERLIN PRESENTATION
----- Forwarded by Gian Paolo Calzolari/esoc/ESA on 24-04-2009 23:15 -----
                                                                             
             Marjorie de Lande                                               
             Long                                                            
             <marjorie at delandel                                           To 
             ong.com>                   Greg Kazz <greg.j.kazz at jpl.nasa.gov> 
                                                                          cc 
             09-10-2008 16:54           "Gian.Paolo.Calzolari"               
                                        <Gian.Paolo.Calzolari at esa.int>       
                                                                     Subject 
                                        SLS-SLP Meeting Berlin: Slides for   
                                        TC Retransmissions                   
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             




Greg,

Here are the slides for the presentation about TC Retransmissions for
the SLS-SLP meeting in Berlin on Thursday 16th October.

Looking forward to seeing you next week,
Marjorie

Marjorie de Lande Long
I B + M A de Lande Long
Software + Consultancy

(See attached file: TCretransBerlin.ppt)
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