Quantcast How to Determine Daily Rates - 14220_164

Click Here to
Order this information in Print

Click Here to
Order this information on CD-ROM

Click Here to
Download this information in PDF Format

 

Click here to make tpub.com your Home Page

Page Title: How to Determine Daily Rates
Back | Up | Next

Click here for a printable version

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Combat
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
USMC
   
Products
  Educational CD-ROM's
Printed Manuals
Downloadable Books

   


 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Documenting Chronometer Error - 14220_163
Up
Quartermaster 1 & C - Military manual for the Quartermaster rate
Next
Timing Celestial Observations - 14220_165
How to Determine Daily Rates Figure  5-6.  Excerpt  from  the  Timepiece  Rate  Book. Average Daily Rate  (ADR) Example:  a chronometer whose rate is +1.5 seconds will gain 1.5 seconds every  24  hours.  Chronometer  rate  is  usually  expressed  as  seconds  and tenths  of  seconds  per  day  and  is  labeled  gaining  or  losing.  Chronometer rate is determined by comparing errors obtained several days apart and dividing the difference by the number of days between readings. Date 17  July 18  July Correct GMT  (UTC) 11h 30m 00s 11h 30m 00s Chrono. time 11h 32m 00s 11h 32m 01s Average daily rate (ADR) is found by using the formula: (error on last day observed) - (error on first day observed) ADR= (date of last observation) - (date of first observation) ADR  formula  for  a  3  l-day  month.  A  navigator  desiring  to  determine  the chronometer rate compares the chronometer directly with the Washington, D.C.,  (NSS)  1200  radio  time  signal  on  different  days.  On  the  first  day  the chronometer reads fast by 9 minutes 3.0 seconds and on the last day it reads  fast  by  9  minutes  53.5  seconds.  ADR  is  found  as  follows: ADR =(F) 09m 53.5s - (F) 09m 3.0s (31) - (1) 50.5s  diff  = 30 days No attempt should be made to determine chronometer error closer than l/2  (0.5)  second.  Average  daily  rates,  therefore,  are  somewhat  a  more accurate measurement of the chronometer’s performance than are the daily checks because, in the former method, any daily observational errors are averaged out. 5-18 Error 02m 00s 02m 01s Chrono. rate +ls = 1.68s/gaining

Privacy Statement - Press Release - Copyright Information. - Contact Us - Support Integrated Publishing

Integrated Publishing, Inc.
6230 Stone Rd, Unit Q Port Richey, FL 34668

Phone For Parts Inquiries: (727) 493-0744
Google +