Table 1 Differences (in pixel) of the center of interference fringes obtained by FP01–FP04 for 3 days
From: Measurement of thermospheric temperatures using OMTI Fabry–Perot interferometers with 70-mm etalon
FP01 | |||
|---|---|---|---|
2011/2/1 | 2011/12/21 | 2012/11/7 | |
|N–S| | (0.04, 0.02) | (0.07, 0.00) | (0.05, 0.00) |
|E–W| | (0.06, 0.00) | (0.01, 0.00) | (0.00, 0.01) |
|NS–EW| | (0.01, 0.03) | (0.01, 0.00) | (0.02, 0.00) |
|L–NS| | (0.21, 0.90) | (0.25, 0.95) | (0.19, 1.29) |
|L–EW| | (0.22, 0.87) | (0.23, 0.95) | (0.23, 1.39) |
Average sigma (K) | 26.34018 | 28.69704 | 27.21892 |
FP02 | |||
|---|---|---|---|
2010/12/23 | 2010/12/24 | 2012/9/24 | |
|N–S| | (0.67, 0.09) | (0.05, 0.16) | (0.07, 0.05) |
|E–W| | (0.03, 0.09) | (0.05, 0.14) | (0.09, 0.07) |
|NS–EW| | (2.63, 6.41) | (2.38, 6.36) | (2.33, 6.20) |
|L–NS| | (0.35, 1.00) | (0.07, 1.13) | (0.30, 0.36) |
|L–EW| | (2.28, 7.41) | (2.45, 7.49) | (2.63, 6.55) |
Average sigma (K) | 17.37568 | 16.06653 | 18.1809 |
FP03 | |||
|---|---|---|---|
2010/10/16 | 2011/2/9 | 2011/4/6 | |
|N–S| | (0.15, 0.25) | (0.01, 0.02) | (0.07, 0.11) |
|E–W| | (0.12, 0.02) | (0.06, 0.05) | (0.06, 0.49) |
|NS–EW| | (0.42, 1.32) | (0.31, 1.25) | (0.32, 1.81) |
|L–NS| | (0.60, 1.31) | (0.28, 1.15) | (0.09, 1.09) |
|L–EW| | (0.18, 0.02) | (0.04, 0.11) | (0.57, 0.72) |
Average sigma (K) | 21.00218 | 17.52931 | 38.39434 |
FP04 | |||
|---|---|---|---|
2011/12/6 | 2012/11/23 | 2012/1/3 | |
|N–S| | (0.08, 0.11) | (0.03, 0.04) | (0.03, 0.08) |
|E–W| | (0.04, 0.07) | (0.07, 0.07) | (0.03, 0.01) |
|NS–EW| | (3.75, 6.22) | (3.74, 6.28) | (3.65, 6.06) |
|L–NS| | (5.00, 7.59) | (4.61, 6.99) | (5.03, 7.41) |
|L–EW| | (1.25, 1.27) | (0.88, 0.71) | (1.38, 1.36) |
Average sigma (K) | 22.06626 | 24.60057 | 11.01532 |