urn:nasa:pds:a17leam_raw_worktape:data:a17_leam_1976_l1_wt_cv_tab 1.0 1.7.0.0 Product_Observational 1976-03-11T12:59:40.991Z 1976-07-13T14:00:25.093Z Apollo 17 Mission urn:nasa:pds:context:investigation:mission.apollo_17 data_to_investigation Apollo 17 ALSEP Spacecraft urn:nasa:pds:context:instrument_host:spacecraft.a17a is_instrument_host Apollo 17 Lunar Ejecta And Meteorite Experiment Instrument urn:nasa:pds:context:instrument:leam.a17a is_instrument MOON Satellite urn:nasa:pds:context:target:satellite.earth.moon data_to_target Dust Dust urn:nasa:pds:context:target:dust.dust data_to_target a17_leam_1976_l1_wt_cv.tab 1353 41

Header 0 33 7-Bit ASCII Text

CVLog 33 40 The table contains a log of Command Verification (CV) messages received by Apollo 17 ALSEP for Lunar Surface Magnetometer operations. Command Verification is provided in ALSEP Word 7 as ALSEP measurement numbers DA-5 and DA-6. Each CV message consists of the command code received and one bit flag that indicates if command parity error check was successful and the command was acted upon. The earth-received time column and the CV message columns are followed by a quality flag. Records are time-ordered by the earth-received time. Carriage-Return Line-Feed 5 0 33 EarthReceivedTime 1 1 ASCII_String 21 %-21s Day of year and time (Universal Time, formatted as yyyy-dddThh:mm:ss.sss) when the first word of the ALSEP frame containing the Command Verification was received at a ground tracking and receiving station on earth. EarthReceivedTime_Flag 2 23 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates this EarthReceivedTime value is from ground software clock; has a suspected transmission, data synchronization or tape read error in the value; or is clearly outside the expected range for this restoration effort. A negative sign (-) indicates this value is the earth-received time, and the value does not have a suspected read or transmission error or that it is unknown if there was an error. CV 4 25 ASCII_Numeric_Base8 3 %3o Command Verification (also known as the command counter code) is a 7-bit command received, represented as octal values. Octal CV values for LEAM operations are 111-117. Measurement number DA-5 from bits 3-9 of ALSEP Word 7. MAP 5 29 ASCII_Integer 1 %1d DN Message Acceptance Pulse (MAP) bit flag is set to the value 1 when the command parity error check was successful and the command was accepted and acted upon. The value 0 indicates the command parity check failed. Measurement number DA-6 from bit 10 of ALSEP Word 7. CV_Flag 6 31 ASCII_String 1 %1s This field is set one of two values: An asterisk (*) indicates the CV and/or its MAP has a suspected read or transmission error; A negative sign (-) indicates these values do not have a suspected read or transmission error or that it is unknown if there was an error.