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ARAB ACADEMY FOR SCIENCE & TECHNOLOGY & MARITIME
TRANSPORT
COLLEGE OF MARITIME TRANSPORT & TECHNOLOGY
Terrestrial Navigation 2 MT233
Chart CorrectionPrepared By
Navigation Team
Without a chart the ship cannot be navigated.
Without an up to date chart the ship cannot be navigated safely.
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The following items are required to run a satisfactory correction and warning system.
1 -Chart Correction Log and Folio Index(NP 133A, 133B)
2 -Temporary and Preliminary Notice Log.
3 -Navigational Warning Log.
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Equipment Publications:1- CHART CORRECTION LOG(NP133A)
Enables easy maintenance of chart correcting details for admiralty charts Audit pages to record receipt of Weekly Notices to Mariners, New Charts and New Editions Index to check Notices to Mariners against all Admiralty Charts.
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PublicationsThere are three publications covering NM1. Admiralty Notices to Mariners, Weekly
Editions2. Annual Summary of Admiralty Notices to
Mariners (NP 247)3. Cumulative List of Admiralty Notices to
Mariners (NP 234A & 234B)
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Types of Navigational Chart Correction Notices
1 -Permanent Notices.2 -Temporary Notices (T).3 -Preliminary Notices (P).
4 -New Edition or New Chart.
5 -Blocks
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Types of Navigational Chart Correction Notices
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Types of Navigational Chart Correction Notices
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Types of Navigational Chart Correction Notices
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Types of Navigational Chart Correction Notices
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Types of Navigational Chart Correction Notices
Hints on correcting charts
1- Permanent Notices should be neatly made in waterproof violet ink on the charts affected.2- Notation of the year and number of the
Notices inserted should be made in the bottom left-hand corner of the chart.
3- Always check that the previous Notice has been inserted.
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Hints on correcting charts cont.,
4- If several charted are affected by one notice, the largest scale chart should be corrected
first.5- Correct the chart folios in use first.
6- Whenever possible, writing should be inserted clear of the water unless the
relevant objects are on the water.
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Terms used in updates
INSERT is used for the insertion of all new data or together with DELETE command.
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INSERT
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732 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.
Source: D PattersonChart 5052 [ previous update 2512/05] ETRS89 DATUMInsert PA 50° 05´·36N., 000° 45´·96E.
PA
Small Corrections: 2007 732
Terms used in updates
AMEND is used when a feature remain in its existing charted position but has a
change of characteristic.
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AMEND
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896 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.
Source: D PattersonChart 5052 [ previous update 732/07] ETRS89 DATUMAmend Light to, Gp Occ )4(WR.15sec24M 50° 03´·84N., 001° 22´·18E.
Gp Occ (4)WR.15sec24M
Small Corrections:2007 732 - 896
Terms used in updates
SUBSTITUDE is used when one feature replaces an existing feature and the
position remains as charted.
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SUBSTITUDE
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1211 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.
Source: D PattersonChart 5052 [ previous update 896/07] ETRS89 DATUM
Substitute 50° 06´·22N., 000° 14´·02E. PA
Small Corrections:2007 732 - 896- 1211
Terms used in updatesMOVE is used for features whose
characteristics or descriptions remain unchanged, but they are to be move small
distance.
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MOVE
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1519 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.Source: D PattersonChart 5052 [ previous update 1211/07] ETRS89 DATUM
Move From: 50° 47´·00N. 001° 07´·60E. To: 50° 47´·00N, 001° 06´·70E
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Small Corrections:2007 732 -896 -1211 -1519
Terms used in updatesDELETE is used when features are
to be removed from the chart or, together with the INSERT command.
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DELETE
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1719 *ENGLAND - East Coast - Holy Island Southwards - Skate Road - Wreck.
Source: D PattersonChart 5052 [ previous update 1519/07] ETRS89 DATUM
Delete symbol, tidal stream diamond, with designation, K 50° 29´·92N., 000° 26´·42E.
Small Corrections:2007 732- 896- 1211 -1519 - 1719
Tracings for chart correction When tracings are supplied, They are
provided for all permanent navigational chart corrections promulgated in the Weekly
edition of Admiralty Notices to Mariners, Except when a block correction only applies.
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Tracing DetailsThe chart numberThe notice to mariners number for the
current correctionThe previous correctionThe standard folios in which the chart is
contained
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Thank youAny Question