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Re: East China Sea Fix
From: Mike Burkes
Date: 2008 Nov 13, 17:59 -0800
From: Mike Burkes
Date: 2008 Nov 13, 17:59 -0800
My corrected fix yielded 26d 52.8N,129d 40.6E. Mike Burkes On Nov 13, 1:37�am, Anabasi...@aol.com wrote: > Here is a daylight planet fix. �Unfortunately the sun was obscured by �clouds > to preclude a three-body fix. > > Date/Time 19 October 2008 UTC 08h 41m 00s > 0841Z Fix Lat: 26 deg 53.5' N �Long 129 deg 37.8' E > Course 310 at 13.1 knots. > Height of eye is 107 feet, Index error is 0.7' on the arc, T/P 80 deg F at � > 1010 mB. > > Venus was shot at UTC 08h 35m 48s with an Hs of 22 deg 54.4' > > Jupiter was shot as an ex-meridian at UTC 08h 39m 48s with an Hs of 40 deg � > 22.9' > --------------------------------- > > My manual ex meridian calculations gave me a latitude of 26 deg 52.5' N at � > 0840Z (see below for solution) > > My computer gave me a 0841Z fix of 26 deg 52.8' N; long 129 deg 39.3' E by � > reducing both as standard LOP's. > > ----------------------------------- > ex-meridian calculations: > > GHA hr 221 deg 43.0' > t corr � � � �9 deg 57.0' > v corr �(2.1) � � � � +1.4' > ------------------------------- > GHA � � 231 deg 41.4 > +Long � 129 deg 37.8 > ------------------------------- > LHA � � � � �1 deg 19.2' > > "a" correction is 2.1 �c= a(t^2)/60 = 2.1(5.3^2)/60= 0.98 = 1.0 � [these > corrections can be found in Bowditch tables etc] > > Dec is S 22 deg 55.3' [ from Nautical Almanac, no correction due to �time] > > Hs 40 deg 22.9' > IC � � � � � � �-0.7' > Dip � � � � � � -9.9' > ----------------------- > Ha 40 deg 12.3' > body � � � � �-1.1' > ----------------------- > Ho 40 deg 11.2 > corr � � � � �+1.0 > ---------------------- > Ho' 40 deg 12.2 > > Zdis = 90-Ho' = 49 deg 47.8' > Dec � � � � � � � - �22 deg 55.3' [Declination is opposite of Latitude and is > therefore �subtracted] > ----------------------------------------- > Lat � � � � � � � � � 26 deg 52.5' North > > Jeremy > **************Get the Moviefone Toolbar. Showtimes, theaters, movie news & > more!(http://pr.atwola.com/promoclk/100000075x1212774565x1200812037/aol?red... > p://toolbar.aol.com/moviefone/download.html?ncid=emlcntusdown00000001) --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---