A description of Dynamic Operations
Tests, NCG 147 and NCG 148 simulations, and NCG 150.
with thanks to Bob Burns for the text
and scans.
NCG 147
The purpose of NCG 147 is to place an entire MSFN
station in operational configuration per the NOD [Network Operations Directive] and evaluate the station
electronics and personal performance. It is a measure of the station’s
ability to support an Apollo mission.
NCG 147, which can take from one to three weeks
to complete, is the prime method used to train individual site personnel in
the use of Mission Documentation and Standard Operating Procedures. During
the course of the simulation, the station performs all of the activities that
normally take place during an H-240 or H-140 count, the H-30 count, during
the pass and after the pass.
NCG 147 can be performed using aircraft, satellite
and/or magnetic tapes as the signal sources.
NCG 148 STATION/SOCC SIMULATIONS
The NCG 148 simulaton is performed with an instrumented
aircraft or with magnetic tape. It differs from the NCG 147 in that the exercise
includes sending data to and receiving data from the SOCC. Direction of the
simulation is from GSFC/NT&TF. the entire station and its personnel are
called up as they would be in NCG 147.
NCG 148 is usually run as part of NCG 147 and
lasts from 8 to 16 hours. It provides training for station personnel in MCC-H
interface and procedures. This sim is the initial step in transferring from
an individual element to part of a complex network.
NCG 150
NCG 150 is a local drill conducted by the site
at the station director’s and/or the M&O’s discretion. It exercises
the whole station utilizing the SRT and standard pre-pass procedures, but
can also be used for individual systems’ or subsystems’ cross training,
such as the USB, TLM, etc. NCG 150 lasts for approximately 8 to 16 hours dependent
on what portion of the sim is used.
DYNAMIC OPERATIONS TEST
The DOT is designed to confirm the proper operations
of the systems and subsystems as a prerequisite to NCG 147. It is similar
in scope to DIT 418 in that it is a closed loop test involving all ground
and spacecraft equipment.
The test is scheduled for five working days and
involves at one time or another the entire station crew. Although no formal
SOP’s are used, experience is gained in the areas of intercom, data handling
and acquisition.
NASA GSFC Instrumented Aircraft Configuration Drawings [NASA 420 and 421]
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Interior arrangement and antenna identifications |
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C-121G Aircraft – Super Constellation |
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Frequency and System Availability Table |
