===================================================================== CONT05 Session Notes September, 2005 First session start: September 12, 2005 17:00 UT End of last session: September 27, 2005 16:30 UT ===================================================================== Number of 24-hr sessions: 15 Participating stations: Algonquin, Gilcreek, Kokee, HartRAO, Ny Alesund, Onsala, Svetloe, TIGO, Tsukuba, Westford, Wettzell Average number of observations per day: 6750 Total number of campaign observations: 101,000 ===================================================================== Schedules The sources for the schedules are based on the best 80 sources of the good geodetic source catalog. Source 2134+00 was taken out due to known source structure. Five other sources were taken out using a scoring scheme derived from the number of non-detections of the most recent (six months) R1 and R4 sessions. Only sources that had less than 15% of non-detections were retained. The number of sources being used for the scheduling are 74. An extra 3 seconds is added at the start of each scan for correlator synchronization. These extra seconds are not included in the calculation of the scan SNR. SNR Targets: Minimum SNR for all baselines: X-band (margin 5): 25 S-band (margin 3): 20 The SEFD on X-band for TIGO was fixed to 12000. Algonquin was tagged along. ===================================================================== Special Instructions Refer to the schedule summary at the end of the file for the overall schedule of sessions. Several session days will be recorded onto 1 or 2 disk modules. One module may be used to record more than one session or session parts. Several session days are grouped together for sharing disks creating the following recording groups (together with the corresponding correlators): C0501 ==> Bonn C0502,C0503,C0504 ==> Washington C0505,C0506 ==> Haystack C0507,C0508 ==> Bonn C0509,C0510,C0511 ==> Washington C0512,C0513 ==> Washington C0514,C0515 ==> Bonn CABLE CAL CHECK: A cable check should be performed before the start of the first session and after the end of the last session. Stations should NOT do any cable cal checks (or anything else that might interrupt the 5 MHz to the antenna unit) between sessions. POINTING: There is a break of 30 min between all session days allowing for a pointing check on every day. Stations should check the pointing between every session if possible. FS TIME: Please check your FS/formatter clock offset during each break between schedules, with: sy=run setcl & If the offset has exceeded +/- 25 centiseconds, please reset the FS clock model with: sy=run setcl offset & Please be sure to verify the formatter time against GPS so that you are not just reseting the FS to an incorrect formatter time. MODULe SHIPPING: The modules can be sent as soon as no further recording is planned on them. This can be at the end of a recording group, or within a recording group when a module filled up and the recording is continued on a second module. Stations should label the modules to indicate which session(s) the modules contain. The R-type sessions will be processed within the nominal 15 day time delay for the rapid sessions. These sessions require that the modules be shipped to the correlator by express. The expedited shipment holds also for modules that contain both rapid and non-rapid data. LOG FILES: Log files should be ftp'd to the IVS Data Center every day, following the end of each session. This will ensure the logs are available for the correlators to set up for pre-passing and for processing the rapid sessions. It will also let the status of each station be checked. Automatic scripts process the logs each night, the summary files and plots are posted on the session web page, and the session performance matrix is updated. ===================================================================== Table 1: CONT05 Observing Plan Summary Day Code Start End Correlator Rapid --- ----- ---------- ---------- ---------- ----- Mon pointing check cable check C0501 255-170000 256-163000 Bonn *R1* Tue pointing check C0502 256-170000 257-163000 Washington Wed pointing check C0503 257-170000 258-163000 Washington Thu pointing check C0504 258-170000 259-163000 Washington *R4* Fri pointing check C0505 259-170000 260-163000 Haystack Sat pointing check C0506 260-170000 261-163000 Haystack Sun pointing check C0507 261-170000 262-163000 Bonn Mon pointing check C0508 262-170000 263-163000 Bonn *R1* Tue pointing check C0509 263-170000 264-163000 Washington Wed pointing check C0510 264-170000 265-163000 Washington Thu pointing check C0511 265-170000 266-163000 Washington *R4* Fri pointing check C0512 266-170000 267-163000 Washington Sat pointing check C0513 267-170000 268-163000 Washington Sun pointing check C0514 268-170000 269-163000 Bonn Mon pointing check C0515 269-170000 270-163000 Bonn *R1* Tue cable check Notes for stations: - Each schedule will end no later than the "End" time. - Stations must send modules for the "Rapid" sessions express to the correlator, as usual. - Stations should label the disk modules to show which CONT05 session days are recorded. - Stations should confirm all initiated shipments to the correlators. - The observation of the Intensives will continue during CONT05. The CONT05 sessions have no observations scheduled for Wz-Kk during the Int1 Intensive time and no observations for Ts-Wz during the Int2 Intensive time. The stations Kk, Ts, and Wz will leave the CONT05 schedule and re-join it after the Intensive. - Do NOT do any cable checks other than the two checks shown. Notes for correlators: - A disk module may contain data of 1, 2, or possibly 3 observation days. The disk modules have labels according to the sessions being recorded. - A session may be spread over 2 modules for one station and fit on a single module for another station. ===================================================================== Table 2: Recording Groups and Module Usage Summary: =================================================================== Ap Gc Hh Kk Ny On Sv Tc Ts Wf Wz Avg =================================================================== C0501 220 925 1075 1229 944 1105 592 1154 742 1146 824 905 ---------------------------------------------------------- A B B B B B A B A B A =================================================================== C0502 242 926 1080 1236 949 1111 595 1202 752 1172 806 916 C0503 225 921 1073 1272 945 1087 580 1149 766 1157 782 905 C0504 242 980 1079 1265 947 1111 568 1186 732 1176 779 915 ---------------------------------------------------------- 709 2827 3232 3773 2841 3309 1743 3537 2250 3505 2367 2736 A D,A 2D 2D 2D 2D D 2D D,A 2D D,A =================================================================== C0505 241 930 1063 1264 950 1110 584 1243 695 1158 725 906 C0506 250 958 1091 1299 958 1123 591 1156 700 1189 792 919 ---------------------------------------------------------- 491 1888 2154 2563 1908 2233 1175 2399 1395 2347 1517 1825 A D D,A D,A D D,B B D,A B D,A D =================================================================== C0507 252 969 1051 1324 981 1108 599 1141 803 1186 843 932 C0508 226 929 1035 1256 933 1083 581 1175 763 1161 801 904 ---------------------------------------------------------- 478 1898 2086 2580 1914 2191 1180 2316 1566 2347 1644 1836 A D D,A D,A D D,A B D,A D D,A D =================================================================== C0509 222 892 1046 1247 948 1068 576 1132 705 1127 757 883 C0510 231 948 1070 1257 956 1133 592 1215 738 1234 814 926 C0511 229 941 1024 1248 925 1096 563 1193 723 1170 751 897 ---------------------------------------------------------- 682 2781 3140 3752 2829 3297 1731 3540 2166 3531 2322 2706 A D,A 2D 2D 2D 2D D 2D D,A 2D D,A =================================================================== C0512 226 965 1039 1217 930 1119 574 1195 744 1219 769 909 C0513 233 916 1081 1351 938 1081 589 1174 722 1135 764 908 ---------------------------------------------------------- 459 1881 2120 2568 1868 2200 1163 2369 1466 2354 1533 1817 A D D,A D,A D D,A B D,A D D,A D =================================================================== C0514 225 938 1043 1323 960 1100 593 1198 766 1168 824 922 C0515 243 940 1046 1230 961 1103 616 1185 740 1124 791 907 ---------------------------------------------------------- 468 1878 2089 2553 1921 2203 1209 2383 1506 2292 1615 1829 A D D,A D,A D D,A B D,A D D,A D =================================================================== Module sizes: A ( 960 GB) B (1440 GB) D (2000 GB) Notes: - Example (recording group C0502,C0503,C0504 and station Kokee): + record session C0502 on first D module, + record first part of session C0503 on first D module and remaining part on second D module, and + record first part of session C0504 on second D module and remainder on the A module. - Suggestions for handling disk module changes are provided at the end of this document. - Tsukuba will record on K5 disks and then e-transfer to Haystack. Haystack records data on listed Mark 5 modules. - Each station has spare modules alloted that shall be used when a regular disk fails: Ap A Ny 4A,2D Ts 2D Gc 2A,4D On 2D Wf 2D Hh 2D Sv 2D Wz 2D Kk 2A,2D Tc D The additional spare modules for Gc, Kk, and Ny are due to a decrease of storage requirements from the simulation to the final schedules. - An "extra" disk is normally inserted once recording had started on the last allocated disk for an experiment. This is done in case the last allocated disk fills early. Normally this should be the smallest available spare. However, if some other disk used in the experiment has failed and filled prematurely, the station should consider how much additional space is likely to be needed when selecting the "extra" disk. Please inform the coordinating center (ivscc@ivscc.gsfc.nasa.gov) whenever you use a spare. ===================================================================== Recording mode Name Code GEOSX SX Recording mode setup for: ALGOPARK GILCREEK HARTRAO KOKEE NYALES20 ONSALA60 SVETLOE TIGOCONC TSUKUB32 WESTFORD WETTZELL Mode Tot.Rate Tot.BandW #chan #bits Barrel Chan.BW Mk341:2 256.000 Mbits 128.000 MHz 14 1 NONE 8.00 MHz X-band spanned bw= 720.0 MHz rms spanned bw= 280.4 MHz S-band spanned bw= 120.0 MHz rms spanned bw= 48.8 MHz ===================================================================== =================== DISK MODULE CHANGES =================== These experiments will require 1, 2, or 3 disk modules each. Stations should follow the assigned list of modules according to Table 2 in these notes. DRUDG does not know the sizes, so it shows an ever-increasing GByte count in the listings. Please be aware that you may have to change modules several times during each experiment, plan accordingly. Here are four suggestions for handling the changes: 1) Mark module change times. Select the modules you will use for each experiment, note their sizes, and then mark by hand the approximate places in the schedule where each module is expected to be full (you will have to estimate this when you start an experiment with a partially filled module). This is the time when you should expect to change a module. Mark by hand which bank will be changed and which module will be inserted. You can use the DRUDG Option 5 listing for this purpose. 2) Change modules promptly. When a module is full, the FS will automatically switch to the next one and put up a prompt window saying that you should change the old one. It is good practice to change the module as soon as it's called for because then the FS will have a module to switch to in case the one being recorded to becomes full prematurely. You should check periodically during the experiments that the modules are filling at the expected rate. The window prompting you to change the module will give both the VSN and bank that needs to be changed. You should dismiss the window once the module has been changed. 3) Label the modules before removing then from the Mark 5, also affix a red dot. This will help avoid mixing-up the modules. At a minimum, label the module with the experiment it was used in and its sequence number. If you have the FS 9.8.1 version of DRUDG available you should be able to print a label using: cd /usr2/log /usr2/fs-9.8.1/bin/drudg LOG_NAME VSN where LOG_NAME is the name of the experiment log, including the ".log" and VSN is the eight character VSN. 4) When inserting a module, turn the latch to turn on the module when there will be no Mark5 commands executed by the schedule for at least 20 seconds. There is no problem about when a latch is turned to turn off a module or when a module is slide in or out. However, when the module is turned on with the latch, the Mark5 will not respond to Field System commands for about 20 seconds. So EITHER turn the latch when there is more than 20 seconds before the start of recording after the completion of the equipment set-up procedure OR more than 20 seconds before the end of recording during an observation after recording has started. If you have any questions, please contact Ed Himwich (weh@ivscc.gsfc.nasa.gov).