Changeset 6816

Timestamp:

03/11/05 08:42:58 (20 years ago)

Author:

galante

Message:

*** empty log message ***

File:

• trunk/MagicSoft/GRB-Proposal/Monitor.tex (modified) (9 diffs)

trunk/MagicSoft/GRB-Proposal/Monitor.tex

@@ -41 +41 @@
 inner pixel of the \ma camera.\\
 
-In case of alert, {\it gspot} stores the informations and enters
+In case of alert, {\it gspot} stores the informations and enters into
 an {\bf Alarm State}. The duration of the alarm depends on the following parameters:
 
@@ -54 +54 @@
 distance from the GRB to the Moon has to be at least 30$^\circ$. This constant
 value of 30$^\circ$ will change in the future as soon as the camera experts
-will provide a plot of the safe distance from the Moon vs. Moon's phase.
+will provide a plot of the safe distance from the Moon vs. Moon phase.
 Therefore such dynamical limit for this value will be used.
 \end{itemize}
@@ -63 +63 @@
 At the moment when the criteria listed above are fulfilled for this burst, and the time interval 
 after the burst onset is smaller than 5 hours, {\it gspot} enters into \textcolor{red}{\bf Red Alarm State}.
-If all the mentioned conditions are satisfied from the beginning, {\it gspot} enters into Red Alarm State immediately.
-If more than one alert is recived and the burst can not be observed immediately, the alert information are saved in a list. 
+If all the mentioned conditions are satisfied from the beginning, {\it gspot} enters 
+into \textcolor{red}{\bf Red Alarm State} immediately.
+If more than one alert is recived and the burst cannot be observed immediately, 
+the alert information are saved in a list. 
 The software weights the alerts according the total amount of time in which
-the GRB will be observable, the delay from the onset of GRB's observability,
-the intensisty of the burst and the mean GRB's zenith angle during its
+the GRB will be observable, the delay from the onset of GRB observability,
+the intensisty of the burst and the mean GRB zenith angle during its
 period of observability.
 The best candidate is sent to the CC as soon as {\it gspot} 
-enters the \textcolor{red}{\bf Red Alarm state}, i.e. as soon as such
+enters into the \textcolor{red}{\bf Red Alarm state}, i.e. as soon as such
 candidate becomes observable.\\
 
@@ -76 +78 @@
 if the communication with the CC is available then {\it gspot} sends to it 
 the GRB equatorial coordinates (RA/DEC J2000).
-For the communication with CC the format defined in~\cite{CONTROL} is used.
-At the same time, the shifters and the GRB-MAGIC group are contacted.
+For the communication with CC, format defined in~\cite{CONTROL} is used.
+At the same time, shifters and the GRB-MAGIC group are contacted.
 
 \subsection{The Interface to the Central Control}
@@ -90 +92 @@
 \begin{itemize}
 \item {\it gspot} receives from the CC the confirmation
-that the alert notice has been received (the CC must send back the alert in order
-to perform a cross-check of the relevant data);
+that the alert notice has been received (CC must send back the alert in order
+to perform a cross-check of relevant data);
 \item the \textcolor{red}{\bf RED Alarm state} expires because of the
 missing of one or more of the needed criteria mentioned above;
@@ -106 +108 @@
 \subsection{GRB Archive and Emails to the GRB-mailing List}
 
-In case of alert -- even if it did not contain the necessary coordinates -- the
+In case of alert -- even if it does not contain the necessary coordinates -- the
 information is  translated into ``human language'' and stored in ASCII files.
 At the same time, an e-mail is sent to the MAGIC GRB-mailing list
@@ -136 +138 @@
 Since July 15$^{\mathrm{th}}$, 2004, {\it gspot} has been working stably at La Palma.
 It received about 100 alerts from HETE-2 and INTEGRAL, out of which
-19 contained GRB's coordinates. Time delays to the onset of the burst
+19 contained GRB coordinates. Time delays to the onset of the burst
 were of the order of several minutes to tens of minutes. The Burst Monitor can be considered stable
-since November 2004. Since then we have received the following four significant alerts:\\
+since November 2004. Since that date we have received the following four significant alerts:\\
 
 \begin{tabular}{lllcccl}
@@ -145 +147 @@
 \end{tabular}
 
-In the first two cases the weather conditions at La Palma were bad. In the last two
-a couple of GRBs were detected within two hours by SWIFT. They were observable since
-their own onset and for all the following 5 hours. The weather was good, but unfortunately
-the Telescope was off-service because of the exceptional events occured in La Palma
-during the previous weeks.
+It's a pitty that weather conditions at La Palma were bad. 
 
 \subsection{Experience from SWIFT GRBs until now}
@@ -166 +164 @@
 \end{tabular}
 
+In the first three alerts weather conditions in La Palma were bad. In the last two
+a couple of GRBs were detected within two hours by SWIFT. They were observable since
+their own onset and for all the following 5 hours. The weather was good, but unfortunately
+the Telescope was off-service because of the exceptional events occured in La Palma
+during the previous weeks.
+
 \subsection{Comparison between the Satellite Orbits}
 
 Figure~\ref{fig:orbit} shows the orbits of the \sw, \he and \ig satellites.
-The \sw and \he satellites are situated in a circular orbit with
+\sw and \he satellites are situated in a circular orbit with
 20.6$^\circ$ and 2$^\circ$ inclination, respectively.
-One revolution of the \sw and \he satellites last about 100\,min.
-The \ig satellite has a highly eccentric orbit with a revolution period of three sidereal days around the Earth.
+One revolution of \sw and \he satellites lasts about 100\,min.
+\ig satellite has a highly eccentric orbit with a revolution period of three sidereal days around the Earth.
 
 \par
 
-It is difficult to draw strong conclusions from the individual satellites' orbits.
-The orientation of the satellites' FoV is influenced by the scheduled targets.
+It is difficult to draw strong conclusions from the individual satellite orbits.
+The orientation of satellites FoV is influenced by the scheduled targets.
 However, \sw is the satellite with the largest inclination and overlaps mostly with the FoV of \ma.
-This increases the chance to receive {\bf Red Alarms} from this satellite.
+This increases the chance to receive {\bf Red Alerts} from this satellite.
 
 \begin{figure}[htp]
 \centering
 \includegraphics[width=0.6\linewidth]{GCNsatellites.eps}
-\caption{Orbits of the \sw (top), \he (center) and \ig (bottom) satellites: The pointed lines
-show the orbit while the drawn lines show the horizon of the Sun. Here, a typical night at
-La Palma is shown. The \sw satellite passes over the Roque seven times each night.}
+\caption{Orbits of \sw (top), \he (center) and \ig (bottom) satellites: dot lines
+show the orbit while drawn lines show the horizon of the Sun. Here, a typical night at
+La Palma is shown. \sw satellite passes over Roque seven times each night.}
 \label{fig:orbit}
 \end{figure}