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1. 48 1980 47 mo 10 0 5 0 6 0 1 2 3 4 5 Section Fig 5 Percentage of abandoned data in each No of satellite No of section showes the very same No of satellite as Table 4 but negle cted Section 0 in this Fig owning to only 2 data l 30 0 1 lt 0 3 0 115 0 085 0 012. 0 02 0 03 10 1125 9 8 70 lt 75 5 Table 3 Table 2 The mean values and standard deviations of difference of latitude departure and distance in each observed time zone Difference of latitude NM Difference of Departure NM distance NM s moan SNA meen SE aean Gda 1 Day time 757 0 010 0 091 0 041 0 122 0 127 0 093 2 S R 135 0 002 0 078 0 036 0 084 0 099 0 066 3 S S 86 0 044 0 113 0 044 0 107 0 123 0 112 4 Night time 465 0 011 0 080 0 036 0 079 0 099 0 064 Total 1443 0 011 0 088 0 039 0 106 0 115 0 085 S R Two hours before sun rise S S Two hours after sun set Table 3 The mean values and standard deviations of difference of latitude departure and distance in each elevation angle Difference of latitude NM Elevation Difference of Departure NM distance NM
3. 84 RICH 10 18 5 0 2 Q970 44 81 90 D 1974 42 67 72 3 WSHE MSU EUR ME 977 58 41 49 1977 89 109 5 Bpi mE 1978
4. 0 05 0 1 0 1 Table 2 3 4 Fig 2 CHS Table 4 11 5 lt 99 60 70 SR 0 03 TH 3
5. 4 5 6 GD 7 5 6 Gy 8 0 1 0 3 KE 8 E CHAD 5
6. 0 04 0 02 0 00 0 02 D Lat Fig 2 The fixed station and mean positions by NNSS in each section lt p The fixed station A Mean positions by NNSS in each number of satellite Mean positions by NNSS in each elevation angle Mean positions by NNSS in each observed time zone 2 84 K 6 48 1980 45 te Table 5 6 7 Fig 3 4 5 5 5 2 0 3 5 0 1 7 Table 5 Number of data in each observed time zone and percentage of unreliable data in each range of distance Observed Number Percentage of unreliable data tite zone ofe pata Difference of distance NM Total 0 6 1 0 1 0 2 0 2 0 3 0 3 0 4 0 4 0 5 0 5 0
7. 60 69 5 0 4 2 70 1 0 6 75 46 Table 7 Number of data in each No of slatelite range of distance and percentage of unreliable data in each Number Percentage of unreliable data No of See OE data Difference of distance NM 0 6 1 0 1 0 2 0 2 0 3 0 3 0 4 0 4 0 5 0 5 0 Total 12 309 0 7 1 0 0 7 0 3 1 0 3 6 13 294 2 0 1 4 0 3 0 3 0 7 2 0 6 8 14 293 0 7 1 7 0 3 0 3 1 7 4 8 19 290 2 4 1 4 1 4 5 2 20 338 2 4 1 2 0 6 0 6 2 4 7 1 Total 1524 1 6 1 3 0 2 0 3 0 3 1 7 5 5 A 20 0 10 0 5 0 5 0 0 0 1 2 3 4 5 6 7 8 0 1 2 3 4 Fig 4 Percentage of abandoned data in each Section Fig 3 Percentage of abandoned data in each observed time zone 30 DERT 3 4
8. No 6019 LUE 0 195 0 144 1527 3 Table 1 AR 1 10 0 22 1505 2 1 30 1 80 20 3 2 0 6 37 1443 Table 1 The mean values and standard deviations of difference of latitude departure and distance in each abandonment range
9. 1527 3 0 6 84 1443 D 2 GR 2 S S N 2 2 4 KE SR SS Table 2 0 03 0 001 lt 0 002 SR SS
10. 357 386 6 NN S S 1973 49 103 107 8 1971 46 1 8
11. 9 5 9 1 0 1 2 3 5 7 1 elevation angle No of section showes the very same range of elevation angle as Table 6 5 5 0 6 5 0 2
12. Difference of latitude NM Difference of Departure NM distance NM Section aad mean Standard ean Standard hein Standard deviation deviation deviation 1 1505 0 007 0 432 0 034 0 371 0 193 0 537 2 1480 0 008 0 151 0 037 0 134 0 135 0 155 3 1443 0 011 0 088 0 039 0 106 0 115 0 085 Section 1 Abandonment range less than 10 0 NM Section 2 Abandonment range less than 1 8 NM Section 3 Abandonment range less than 0 6 NM Table 1 0 19 0 12 0 37 0 54 0 09 0 11 3 0 3 3 HELT 48 1980 43 1
13. Table 4 11 2 HY 0 1 gt 0 13 0 1 Table 4 The mean values and standard deviations of difference of latitude departure and distance in each number of satellite Difference of Departure NM Difference of ee No of Number latitude NM distance NM ean Standard mein Standard Heh Standard deviation deviation deviation 0 it 2 0 035 0 141 0 214 0 297 0 255 0 269 1 12 298 0 016 0 076 0 036 0 095 0 103 0 075 2 13 274 0 013 0 073 0 041 0 091 0 105 0 067 3 14 279 0 012 0 101 0 039 0 086 0 110 0 083 4 19 276 0 008 0 095 0 047 0 106 0 124 0 084 5 20 314 0 006 0 092 0 031 0 137 0 132 0 104 Total 1443 0 011 0 088 0 039 0 106 0 115 0 085 0 06 0 115 0 085 3 5 0 039 0 02 0 1 gt 0 3
14. Section angle pig degree mein Standard an Standard 8 Standard deviation deviation MERN deviation 1 5 9 95 0 058 0 172 0 032 0 118 0 184 0 116 2 10 19 346 0 025 0 108 0 044 0 117 0 134 0 098 3 20 29 302 0 015 0 067 0 034 0 097 0 100 0 072 4 30 39 225 0 006 0 062 0 046 0 088 0 096 0 068 5 40 49 176 0 007 0 064 0 039 0 096 0 099 0 071 6 50 59 138 0 008 0 062 0 049 0 088 0 101 0 060 7 60 69 114 0 014 0 056 0 022 0 110 0 108 0 065 8 70 75 47 0 004 0 052 0 023 0 171 0 149 0 099 Total 1443 0 011 0 088 0 039 0 106 0 115 0 085 4 5 9 0 1 5 9 0 06 0 18 4 76 10 95 6 5
15. Day time 812 2 0 1 6 0 3 0 4 0 3 2 2 6 7 S R 141 2 1 0 7 1 4 4 3 S S 89 2 3 1 1 1 1 4 5 Night time 485 1 4 0 6 0 2 0 4 0 4 1 0 4 1 Total 1527 1 6 1 3 0 2 0 3 0 3 1 7 5 5 S R Two hours before sun rise S S Two hours after sun set Table 6 Number of data in each elevation angle and percentage of unreliable data in each range of distance Elevation Percentage of unreliable data Section angle Number degree ae Difference of distance NM 0 6 1 0 1 042 0 2 043 0 3 0 4 0 4 0 lt 5 0 5 0 Total 1 5 9 122 4 5 7 0 8 2 5 1 6 18 0 2 10 19 369 A 1 6 0 3 0 3 0 8 1 6 6 0 3 20 29 307 7 0 3 2 3 3 3 4 30 39 229 0 4 0 4 0 4 0 9 2 2 5 40 49 186 1 1 6 1 6 1 6 1 6 4 3 6 50 59 145 A 0 7 2 1 4 1 7 60 69 119 7 0 8 4 2 6 7 8 70 75 50 0 6 0 Total 1527 6 1 3 0 2 0 3 0 3 1 7 5 5 6 65 4 5 0 2 BRC 1 2 0 2 3 5 9 18 60 10 19
16. 2 3 53 3 1 42 120 32 42 08 N 129 507 45 E No 5 32 44 20 N 129 52 01 E Fig 1 12950 Fig 1 Observed stations SOM 168 400Mgz 1 5 CC 5 lt 75 2 No 202 WGS 72
17. Author s Citation NAOSITE Nagasaki University s Academic Output SITE UOU OU 0U 0U0 0U0 00 HHHHHHHHHHHH v48 pp 41 47 1980 Issue Date 1980 02 URL http hdl handleney10069730575 This document is downloaded at 2015 11 06T00 51 44Z http naosite lb nagasaki u ac jp 48 41 47 1980 Heh E ERA On the Evaluation Test of the Navy Navigation Satellite System at the Fixed Station in Nagasaki Harbour Hiroshi YOSHIMURA Shigekatsu NAKANE and Masaji GODA The purpose of this study was to obtain the fundamentals based on the results of this system and use them in testing other systems located in the ocean When the positional errors from the station to the fixed positions by the NNSS were greater than a certain value they were disregarded and the calculated results by the remaining data showed similar accuracies as in the previous reports Even when the data were classified by observed conditions they gave very similar results except in the case of lower elevation angles When the abandonment ranges were more than 0 6 nautical miles the percentage of the abandoned data was 5 5 and the percentage of unreliable data in each condition was greatest in the case of the elevation angles lower than 10 next when the angles were higher than 60 The percenta
18. ge in the daytime was nearly 1 5 times as high as that in other time zones and plenty of data showed errors of more than 5 0 nautical miles Even the classific ation by the number of satellites indicates a range of errors from 3 5 to 7 1 but we cannot argue that it is only due to the satellites because such factors as evaluation angles and time zones are involved When we use this system as the standard for the test of other systems therefore it is Al important to consider the percentage of unreliable data and also the observed positions Navy Navigation Satellite System NNS S 1967 1 0 3 0 1 1 2 3
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