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Messenger >> MAG

MESSENGER MAG Alternating Current Data Collection
mess-mag-raw	PDS 4 CERTIFIED

Start Time: 2004-09-13 10:00:00 - Stop Time: 2015-04-30 01:08:14

Contains alternating current (AC) level values at the commanded sample rate. To conserve telemetry the vector sampling will usually be less than the maximum rate, 20 sample/s. To provide a record of the amplitude of fluctuations for frequencies higher than 1 Hz, an AC amplitude is calculated from the more ...

Citiation Information

Author	Korth, H.
Title	MESSENGER MAG Alternating Current Data Collection
Description	Contains alternating current (AC) level values at the commanded sample rate. To conserve telemetry the vector sampling will usually be less than the maximum rate, 20 sample/s. To provide a record of the amplitude of fluctuations for frequencies higher than 1 Hz, an AC amplitude is calculated from the internally sampled 20/s data for the sensor axis commanded as the AC_AXIS. Thus, in addition to the vector samples data, a 1 Hz to 10 Hz bandpass average amplitude is evaluated for the commanded sensor axis, selected by command, and recorded as a log AC value with a 4-bit mantissa of the four most significant non-zero bits and a 4-bit power of two exponent of the 4th (least significant) bit of the mantissa. This is called the logAC value. It is created once per second and saved for telemetry at that rate or at the commanded science rate, whichever is less frequent.
Publisher	NASA Planetary Data System
Publication Year	2021
doi	https://doi.org/10.17189/1522364

PDS3 References

http://doi.org/10.17189/1519744

Top/ data/ log_ac_data/ 2009/ 213_243_AUG /

MAGLAC092130001_V1

Start Time:	2009-08-01T00:01:04.000Z	Stop Time:	2009-08-01T23:59:28.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092140001_V1

Start Time:	2009-08-02T00:01:08.000Z	Stop Time:	2009-08-02T23:59:33.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092150001_V1

Start Time:	2009-08-03T00:01:13.000Z	Stop Time:	2009-08-03T23:59:37.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092160001_V1

Start Time:	2009-08-04T00:01:17.000Z	Stop Time:	2009-08-04T23:59:41.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092170001_V1

Start Time:	2009-08-05T00:01:21.000Z	Stop Time:	2009-08-05T23:59:46.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092180001_V1

Start Time:	2009-08-06T00:01:26.000Z	Stop Time:	2009-08-06T23:59:50.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092190001_V1

Start Time:	2009-08-07T00:01:30.000Z	Stop Time:	2009-08-07T23:59:54.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092200001_V1

Start Time:	2009-08-08T00:01:34.000Z	Stop Time:	2009-08-08T23:59:58.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092210001_V1

Start Time:	2009-08-09T00:01:38.000Z	Stop Time:	2009-08-09T23:58:22.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092220000_V1

Start Time:	2009-08-10T00:00:02.000Z	Stop Time:	2009-08-10T23:58:27.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092230000_V1

Start Time:	2009-08-11T00:00:07.000Z	Stop Time:	2009-08-11T23:58:31.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092240000_V1

Start Time:	2009-08-12T00:00:11.000Z	Stop Time:	2009-08-12T23:58:35.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092250000_V1

Start Time:	2009-08-13T00:00:15.000Z	Stop Time:	2009-08-13T23:58:40.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092260000_V1

Start Time:	2009-08-14T00:00:20.000Z	Stop Time:	2009-08-14T23:58:44.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092270000_V1

Start Time:	2009-08-15T00:00:24.000Z	Stop Time:	2009-08-15T23:58:48.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092280000_V1

Start Time:	2009-08-16T00:00:28.000Z	Stop Time:	2009-08-16T23:58:52.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092290000_V1

Start Time:	2009-08-17T00:00:32.000Z	Stop Time:	2009-08-17T23:58:57.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092300000_V1

Start Time:	2009-08-18T00:00:37.000Z	Stop Time:	2009-08-18T05:57:18.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092360400_V2

Start Time:	2009-08-24T04:00:08.000Z	Stop Time:	2009-08-24T23:58:23.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092370000_V1

Start Time:	2009-08-25T00:00:03.000Z	Stop Time:	2009-08-25T23:58:27.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092380000_V1

Start Time:	2009-08-26T00:00:07.000Z	Stop Time:	2009-08-26T23:58:32.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092390000_V1

Start Time:	2009-08-27T00:00:12.000Z	Stop Time:	2009-08-27T23:58:36.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092400000_V1

Start Time:	2009-08-28T00:00:16.000Z	Stop Time:	2009-08-28T23:58:41.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092410000_V1

Start Time:	2009-08-29T00:00:21.000Z	Stop Time:	2009-08-29T23:58:45.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092420000_V1

Start Time:	2009-08-30T00:00:25.000Z	Stop Time:	2009-08-30T23:58:50.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

MAGLAC092430000_V1

Start Time:	2009-08-31T00:00:30.000Z	Stop Time:	2009-08-31T23:58:54.000Z
The table contains the timetags and 3-axis samples of the magnetic field. The sampling rate is commandable and can vary. The data from each packet

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