Cell Nav Packet 3 - Navi Eanb Questions and definitions 1 2...

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Unformatted text preview: Navi Eanb Questions and definitions: 1. 2. / l 3. A 4. 5. 6. ‘NK ( > ' J Local hour angle (LHA) Y ng-:LDLL w 7' ,_ '_ J fl ' y N136“ fie“ I; at 1%?! MC "0 4 ('3 " “v \ tbmqt/ w I : I 4 .> _ l Waxing / \ . mv- f, (‘2 Cr); Define Irradiation ,V l ‘ “.’.‘~‘,. I . “40,0”? ' "L g “81;? "7 lie/“'H/‘IGCSI/L 4: TL: QflD‘QTf‘“ ’U’ 07: a Riga-Veal b0’.""\/ i(, C'le'KVléfff‘ mt A 535v c Egg/ad. . Which 68 Ies are NOT affected by semi diameter? {A (7 2’4" 1. ‘ (k‘ I‘vk‘Cv; x . 1" 1 t u‘ . A ) 4H P/Wfilfi Hm \8 There a number of items corrected for in the body correction 0f the sun. LISt ‘ ‘ sew“ 01‘ qute/vé 1:; [fa-fr“! fllcl%‘ , ,n ‘ .F ‘ (:1. 5“.»nyl‘, G". K 1,473 " ‘/fi~, What is standard the standard temperature and pressure used in the nautical almanac? / ,vgj ’ I 1 11. 12. Why do mariners avoid shooting bodies with altitudes below 15 degrees? - _ 4‘ _ / Why do Mars and Venusmeen have an addi ionai phase correction? man 7' foot 6 / , W" i ‘ r" t“ ‘ ,rr» av 4L6“ “‘6 w I,“ What causes side error? ‘ 31"?“ '49:;_ ifm‘b} ,x'rraijr {Lit it, \ » " V ‘I' "‘C‘. WT": ‘ amoraqu xi, {,V at") i” *7; r) Tray—V ' & in"; :f’p . - ‘k I" ‘ ’ l y I Mk ’ um“ ‘ Shiv-‘0 r3 \xtx’ Jr \V‘U'trtrmthw What is the primary cause of index Huh-5“ can have. List two of them. i Cy—t’ntrlvaC :‘QG ‘QVVC /‘ ‘ » L’r ‘ r +L~e yo 12w 'w’ ‘3 [j W» :7 r 9.. :2” «hurt: Hon ‘ LatcAd“ VIC": \ L4 own” ‘7 ,, Lei: ['16 if C / Aw" >ié error? i l 1/, yum w,‘ ,6 r_ \f’ [in : éir (Ht/V“,g \ ‘ ,V, \f)\ {L ) L'n’i ,_ 4 qu see Mir ,“f’”” d \1 ‘W/ .wvriéf’ k' 2 k [:7 'f sit/“522% 9 Meg, There arg’thréé nofi’LCSFfeEt/a'bie'grtors Q‘gxténtwk‘"? QLWQC: \.L ta (71.- a“ .7, l Problems: 1. You observe the upper limb of the Sun at a sextant altitude (hs) of 50° 18.7 on 9 September, 1981. The index error is g 15’ off the arc. The height of eye is 43 feet. What is the l observe altitude (Ho)? (2 points) HS". » / sacstip / l0 ,7 «as “.5 T-la‘i‘r‘ n “:1 r; Body ‘l'm; 3/: Ho 57.; v 2. During evening twilight on 25 December, 1981, the sextant altitude (hs) of the planet Venus was 29° 32.2. The height of eye was 45 feet, and index error was 2.’ off the are. What is the observed altitude (Ho)? (2 points) ‘Dez. 7],; HS 3 3),. / {:V'Dip 'é.’ / lC / Ha ; :7: 1} Body ‘ V V / Q <5.” ./ H0 Wu» :6. / 3. On 16 January 1981, you take a sight of a star. The sextant altitude (hs) is 4" 15.0’. The temperature is +10O F, and the barometer reads 1010 millibars. The height of eye is 52 feet. The index correction is -1.9’. What is the observed altitude? (2 points) 4;», its; Hs : ~ '5 .1: / . ts€"Dip by 3 IC "i. 6 3/” U Ha 9’3 x ‘ Body =‘ we «j T&P v ‘. 3: V 3 H0 4 <3: _ l ...
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This note was uploaded on 04/18/2008 for the course DECK DN121 taught by Professor Hall/jablonski/sanborn during the Spring '08 term at United States Merchant Marine Academy.

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Cell Nav Packet 3 - Navi Eanb Questions and definitions 1 2...

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