MJ - Monitor Collocation Period
-------------------------------

Submission of this transaction is recommended for collocated monitors when the raw data for both monitors is submitted to AQS. When the raw data is posted to production, the post process will also create collocated QA pair records when the raw data falls within collocation period for the specific monitors.

Examples:

.. code-block:: text
   :caption: MJ transaction in default mode

   MJ|I|06|001|1001|88101|1|20021104|20030415||Y

.. code-block:: text
   :caption: MJ transaction in Tribal mode

   MJ|I|TT|614|7001|44201|1|20020701|||Y



Format
^^^^^^

.. list-table:: MJ - Monitor Collocation Period transaction format
   :widths: 1 5 15 4 3 1
   :header-rows: 1


   * - Seq.
     - Name
     - Description
     - Formatting Rules
     - Required
     - Key
   * - 1
     - `Transaction Type <Transaction%20Type.html>`_
     - Monitor Collocation Period transaction identifier.
     - Must = MJ
     - Always
     - 
   * - 2
     - `Action Indicator <Action%20Indicator%20for%20Transaction.html>`_
     - Indicator for Insert, Update, or Delete action.
     - Must = I, U, or D
     - Always
     - 
   * - 3
     - `State Code / Tribal Indicator <State%20Code.html>`_
     - The FIPS state code of the monitor, or "TT" to indicate that the next field on the transaction is a Tribal code.
     - Must exist in STATES Reference Table or be 'TT' for Tribal Site
     - Always
     - Y
   * - 4
     - `County Code / Tribal Code <County%20Code.html>`_
     - The FIPS County Code of the site.  If the previous field on the transaction contains "TT", then the Tribal Code of the site.
     - Must exist in COUNTIES (for state) or TRIBAL_AREAS Reference table
     - Always
     - Y
   * - 5
     - `Site Number <Site%20Number.html>`_
     - Four digit number to uniquely identify site in county and/or tribe.
     - Must exist in SITES table with {State Code, county Code} or Tribal Code
     - Always
     - Y
   * - 6
     - `Parameter Code <Parameter%20Code.html>`_
     - The AQS parameter code assigned to the monitor in AQS.
     - Must exist in PARAMETERS reference table.
     - Always
     - Y
   * - 7
     - `POC <POC.html>`_
     - Parameter Occurrence Code:  One or two digit number identifying a specific monitor for a parameter at the site.  
     - Must exist in MONITOR table for non-Insert actions.
     - Always
     - Y
   * - 8
     - `Collocation Begin Date <Collocation%20Begin%20Date.html>`_
     - The begin date when a collocated monitor pair recorded precision and accuracy data.
     - YYYYMMDD.
     - Always
     - Y
   * - 9
     - `Collocation End Date <Collocation%20End%20Date.html>`_
     - The end date when a collocated monitor pair recorded precision and accuracy data.
     - YYYYMMDD.
     - No
     - 
   * - 10
     - `Distance from Primary Sampler <Distance%20from%20Primary%20Sampler.html>`_
     - The distance, in meters, between the samplers.
     - Decimal.
     - No
     - 
   * - 11
     - `Primary Monitor Indicator <Primary%20Monitor%20Indicator.html>`_
     - Indicates if the monitor is the primary of the pair. 
     - Must = Y or N.
     - Always
     -