Report of the exploring expedition to the Rocky Mountains in the year 1842, and to Oregon and north California in the years 1843-44 . 0 40 20 40 51 40 41 03 2541 13 50 min. 34 35 35 36 Index error = -\- 1 min. 40 secRESULT OF CALCULATION. Mean time. Advance. Longitude. h. min. 25 22 h. min. 08 Deg. min. 06 43 Determination of latitude, Sept. 7, 1843—meridian altitudes of the sun. OBSERVATIONS. Double altitudes of the suns lower limb. Time of chronometer. Deg. min. sec. hi min. sec. 109 09 10 1 02 54 109 09 35 03 52 109 09 30 05 53 10
Report of the exploring expedition to the Rocky Mountains in the year 1842, and to Oregon and north California in the years 1843-44 . 0 40 20 40 51 40 41 03 2541 13 50 min. 34 35 35 36 Index error = -\- 1 min. 40 secRESULT OF CALCULATION. Mean time. Advance. Longitude. h. min. 25 22 h. min. 08 Deg. min. 06 43 Determination of latitude, Sept. 7, 1843—meridian altitudes of the sun. OBSERVATIONS. Double altitudes of the suns lower limb. Time of chronometer. Deg. min. sec. hi min. sec. 109 09 10 1 02 54 109 09 35 03 52 109 09 30 05 53 109 09 55 06 56 109 09 30 08 03 109 09 25 08 44 109 08 55 09 28 109 08 20 10 11 109 07 50 11 02 109 07 00 11 56 Index error = -f- 1 min. 32 OF CALCULATION. True altitude. Apparent time of transit. Latitude. Deg. min. 51 01 h. min. 06 14 Deg. min. 15 50 [ 174 ] 400 ENCAMPMENT ON WEBERS of longitude, Sept. 7, 1843—altitudes of the sun. OBSERVATIONS. FIRST SERIES. SECOND SERIES. Double altitudes of thesuns lower limb. Def. min. gee 41 36 15 41 18 30 4t 07 10 • 40 56 40 40 46 30. Double altitudes of the Time of chronometer. suns lower limb. Deir. mini SfC. h. min. fee. 40 37 50 5 37 40 27 45 38 40 19 10 38 40 08 35 3-1 56 8 40 00 50 39 Index error = + I min. 32 secRESULT OF CALCULATION. Mean time. Advance. h. mm. 29 C6 mn. Longitude. ENCAMPMENT ON WEBERS FORK, VERY NEAR THE of longitude, Sept. 8, 1843—attitudes of the sun. OBSERVATIONS. FIRST SERIES. SECOSD SERIES. Double altitudes of thesuns lower limb. Time of chronometer. Double altitudes of thesuns lower limb. Time of chronometer. Dei*, min. 07 5043 54 5543 42 5043 33 0043 23 55 h. min. sec. 5 26 14-02U J)pq. min. sec. 41 13 5043 02 55ii 52 45 42 43 3042 29 10 h. min. 28 4 29 29 38 0 30 < Indtx erior = -+- 1 min. 40 OF CALCULATION. Mean time. Ad
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Keywords: ., bookauthorunitedstatesarmycorps, bookcentury1800, bookdecade1840
