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ASSIGNMENT 4
Textbook Assignment:
"Celestial Observations and Sight Reduction Methods" continued,
chapter 9, pages 9-15 through 9-41.
4-8.
W h a t i s t h e i n t e r c e p t ?
4-l.
4-2.
4-3.
4-4.
4-5.
4-6.
4-7.
DATE:
1 MARCH 1984
DR LATITUDE:
32°14.0'N
DR LONGITUDE:
18°54.O'W
GMT:
11-27-30
HEIGHT OF EYE:
32 FT
ON THE ARC:
1 . 0 '
h s :
41°31.3
What is the IC correction?
1.
0
2 . + l . 0
3 . - 1 . 0
4 . - 2 . 0
W h a t i s t h e a l t i t u d e c o r r e c t i o n ?
1 . + 1 4 . 9
2 . - 1 4 . 9
3 . + 1 5 . 2
4 . - 1 5 . 2
What is the Ho?
1 . 4 1 ° 0 9 . 6 '
2 . 4 1 ° 2 4 . 8 '
3 . 4 1 ° 3 6 . 5 '
4 . 4 1 ° 4 0 . 0 '
What is the total GHA?
1 . 3 3 1 ° 0 0 . 0 '
2 . 3 3 5 ° 2 9 . 2 '
3 . 3 4 1 ° 5 4 . 7 '
4 . 3 4 8 ° 4 7 . 2 '
What is the LHA?
1 . 3 2 4 °
2 . 3 3 0 °
3 . 3 4 6 °
4 . 3 5 6 °
What is the d#?
1.
- .5
2.
+ .5
3 .
- 1 . 0
4.
+ l . 0
W h a t i s t h e t o t a l d e c l i n a t i o n
i n t e r p o l a t i o n c o r r e c t i o n ?
1 . 1 0 . 7 '
2 . 2 0 . 5 '
3 . 2 3 . 0 '
4 . 2 6 . 3 '
IN ANSWERING QUESTIONS 4-1 THROUGH 4-9
REFER TO FIGURES 4-A THROUGH 4-E, LOCATED
AT THE END OF THIS ASSIGNMENT, TO FIGURE A
SUNLINE.
GIVEN.
THE FOLLOWING INFORMATION IS
1.
22.4 miles
2.
away
22.4 miles towards
3.
16.2 miles away
4.
16.2 miles towards
4-9.
What is the Zn?
1.
139.2°
2.
139.5°
3.
138.4°
4.
140.2°
UPON FIGURING A SUNLINE YOUR DR LATITUDE
IS 37°14.3'N, DECLINATION IS 09°29.4', AND
THE LHA IS 300°.
IN ANSWERING QUESTIONS 4-10 AND 4-11
REFER TO FIGURES 9-10 AND 9-11 IN YOUR
TEXT.
4-10.
4-11.
4-12.
What is the d?
1.
35.3
2.
35.4
3.
36.4
4.
36.8
What is the HC?
1.
28°14.6'
2.
28°15.7'
3.
29°08.4'
4.
29°14.7'
When plotting a sunline (LOP)
w h i c h l o n g i t u d e i s u s e d t o p l o t t h e
AP on the plotting sheet?
1.
The DR longitude
2.
3.
The actual longitude
4.
The assumed longitude
The computed longitude
15
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