CHECK/CHANGE METERING RATE

Checking and Changing the Metering Rate

The metering rate is the amount of time between commands - a metering rate of 3 is one command sent every 3 seconds and a metering rate of 7 is one command sent every 7 seconds.

NOTE: We set the metering rate to 7 for D27 passes and leave it at 3 for all other passes. If you leave before the end of the D27 pass, leave the metering rate at 7.

Checking the metering rate:

Check the current metering rate (do as SOC) and write in log.

To Check the metering rate:

In a SOC window type chk_metering_rate

The output will look like this:

Thursday, 2007/05/31 (DOY 151, week nr 22) 16:35:21 GMT
Deep Space Network SOHO passes for today and next few days: 2007/05/30 22:00:00-01:50:00 D15 <== METERING RATE TO 3? 2007/05/30 22:00:00-01:50:00 D27 <== METERING RATE TO 7? 2007/05/31 02:05:00-04:10:00 D43 <== METERING RATE TO 3? 2007/05/31 02:05:00-04:10:00 D46 <== METERING RATE TO 3? 2007/05/31 04:40:00-05:40:00 D34 <== METERING RATE TO 3? 2007/05/31 06:25:00-12:45:00 D54 <== METERING RATE TO 3? 2007/05/31 17:10:00-19:15:00 D27 <== METERING RATE TO 7? 2007/05/31 17:10:00-19:15:00 D63 <== METERING RATE TO 3? 2007/05/31 22:25:00-02:25:00 D24 <== METERING RATE TO 3? Metering rate is CURRENTLY set to 3

Check the DSN schedule and see if we need to be at 3 or 7

Changing the metering rate

Make sure NRT is disabled (NRT can be enabled to change metering rate in an emergency)

Type stopcmd in a SOC window

Log that you did stopcmd and the time in the logbook

Type sock in a SOC window to verify that command sockets are down

On TLM quit the NRT Commanding Session Status window manually, the Command Status Display window will come down automatically

Type xedit /home/ecs/ecs/ecs_config/Config.cmd in the SOC window

NOTE: To get into the Config.cmd file you can also type xedit_config in a SOC window and it will automatically open the file for editing.

Go to the line in the file that says "Format number of seconds"

Change the entry to 3 or 7 accordingly

Type startcmd in a SOC window

Log that you did startcmd and the time in the logbook

Type sock in a SOC window to verify that all is normal

Flip the notecard on the TLM computer saying which metering rate is set

On TLM bring up NRT Commanding Session Status window manually, the Command Status Display window will come up automatically

NOTE: The FOT has their own bias that they can set for D27 - their POCC commanding bias

Location: /u/ecs/soc/info/metering_rate_info.html