Report Upon the Determination of the Astronomical Coordinates of the Primary Stations at Cheyenne, Wyoming Territory, and Colorado Springs, Colorado Territory, Made During the Years 1872 and 1873, Geographical and Geological Explorations and Surveys West of the One Hundredth MeridianU.S. Government Printing Office, 1874 - 82 pages |
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Page 8
AT , = adopted mean error of chronometer . ST = AT.- 4.T. AT = error of the chronometer . v = difference between mean final correction of chronometer and 4 T. R E PORT ON ASTRONOMICAL OPERATIONS , CONDUCTED DURING THE.
AT , = adopted mean error of chronometer . ST = AT.- 4.T. AT = error of the chronometer . v = difference between mean final correction of chronometer and 4 T. R E PORT ON ASTRONOMICAL OPERATIONS , CONDUCTED DURING THE.
Page 29
Difference of longitude . Means . errors . 1872 . October 5 . h . m . S. h . m . S. m . S. h . m . S. S. h . 23 mi Cheyenne chron . O 55 6.20 1 52 55.69 2 10.51 Salt Lake .. Salt Lake chron . 22 36 1.51 o 2 10.45 22 33 51.06 o 28 19.45 ...
Difference of longitude . Means . errors . 1872 . October 5 . h . m . S. h . m . S. m . S. h . m . S. S. h . 23 mi Cheyenne chron . O 55 6.20 1 52 55.69 2 10.51 Salt Lake .. Salt Lake chron . 22 36 1.51 o 2 10.45 22 33 51.06 o 28 19.45 ...
Page 30
Whatever differences there may have been between Mr. Austin and myself in recording time , technically known as the personal equation , is still involved in the longitude . To determine this difference , we had two nights ' observations ...
Whatever differences there may have been between Mr. Austin and myself in recording time , technically known as the personal equation , is still involved in the longitude . To determine this difference , we had two nights ' observations ...
Page 68
By measuring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks 08.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on ...
By measuring the differences where I find the full minute , I develop the fact that the Colorado Springs chronometer breaks 08.110 later than the Salt Lake break ; therefore the mean of the signals sent from Salt Lake and received on ...
Page 69
Difference of Double longitude . wave - time . 1873 . July 29 . h . m . S. h . m . S. h . m . S. h . m . S. S. Colo . Springs chron . 18 9 0.11 - 010 II : 72 17 58 48.39 Salt Lake . Salt Lake chron ... 9 23 24.95 + 8 7 5.46 17 30 30.41 ...
Difference of Double longitude . wave - time . 1873 . July 29 . h . m . S. h . m . S. h . m . S. h . m . S. S. Colo . Springs chron . 18 9 0.11 - 010 II : 72 17 58 48.39 Salt Lake . Salt Lake chron ... 9 23 24.95 + 8 7 5.46 17 30 30.41 ...
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Common terms and phrases
30m local sidereal 61 Cygni 9 Draconis aA cC Adopted Aquarii Aquilæ ASSISTANTS astronomical August breaks Capricorni Cephei Changed charge Cheyenne chron chronograph chronom circuit Clamp clear Cloudy Colo Colorado Springs chronometer COLORADO TERRITORY connections Corrections Cygni Date Declination Delphini Determination difference Draconis Engineers eter exchange feet final result GEOGRAPHICAL giving Groom heavy Herculis hour July 31 late Latitude LATITUDE-OBSERVATIONS—Continued Level longitude Lyræ Mean Meridian Micrometer star miles minutes Name of Star nights Normal Equations observations October October 14 Ophiuchi pair Pegasi Piscium placed probable error rain reading received record REDUCTION Remarks Right Sagittarii Salt Lake chron Salt Lake City SALT LAKE OBSERVATORY shows signals sent Springs chron station SURVEYS TABLES OF TIME-REDUCTIONS tent UNIFORM TABLES United Ursæ UTAH TERRITORY Washington Western wind wires Wyoming Territory аА сс