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SLR-Mail No.2078

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Date:2012-04-26 09:44:05
Sender:mlro <mlro@hp835.mt.asi.it>
Subject:[SLR-Mail] No.2078: R: URGENT MAIL - Envisat Major Anomaly (2)
Author:Pierre F
Content:********************************************************************************
SLR Electronic Mail 2012-05-02 10:59:03 UTC Message No. 2078
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Dear all

On 24/04/2012 MLRO team acquired successfully Envisat pass from 9.34 to
09.37 GMT.

During the following passes:
24/04/12 from 20.48 to 20.56
25/04/12 from 20.12 to 20.20

the satellite was visible from the system night camera but no returns was
recorded.

Regards

Giuseppe Nicoletti
Matera MLRO team


-----Messaggio originale-----
Da: slrmail-bounces+mlro=hp835.mt.asi.it@dgfi.badw.de
[mailto:slrmail-bounces+mlro=hp835.mt.asi.it@dgfi.badw.de] Per conto di
Pierre.Femenias@esa.int
Inviato: venerdì 13 aprile 2012 6.26
A: MLRO Matera
Cc: Carey Noll; SLR-Mail
Oggetto: [SLR-Mail] No.2066: URGENT MAIL - Envisat Major Anomaly (2)

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SLR Electronic Mail 2012-04-16 07:22:58 UTC Message No.
2066
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Author: Pierre Féménias ESA ESRIN

URGENT MAIL - Envisat Major Anomaly (2)

Dear Laser Stations, dear colleagues,

Thanks a lot to all for your prompt reaction in tracking Envisat and for the
reporting your delivered so far.
This is highly appreciated and of utmost importance for us to understand and
characterise the Envisat orbit and attitude.

We are still sending regular TC toward Envisat but with no success so far.
Investigation is on-going.

I will therefore kindly ask to maintain (or even increasing if possible) the
effort in tracking Envisat and to let us know more detailed information on
the Envisat passes.
Can you please report for each tracking pass:
- In case no return, although no clouds present, laser station in nominal
condition => Time of the pass
- In case of partial returns, although no clouds present, etc.
=> Time of period where a return was expected

This might not be a nominal procedure and a nominal type of information,
however if you keep such type of logs that would be appreciated.

Warm regards, Pierre Féménias

ESA - European Space Agency

Pierre Féménias
EOP-GMQ
Sensor Performances, Products and Algorithms Office
Earth Observation Ground Segment Department

ESRIN
Via Galileo Galilei
Casella Postale 64 I-00044 Frascati, Italy
Pierre.Femenias@esa.int | www.esa.int
T +39 06 941 80674 | F +39 06 941 80612


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