Table 7.
Dates of simultaneous Jicamarca Digisonde and CHAMP neutral gas density observations for the period of solar maximum. Observed and reduced to the heights hred neutral gas densities (10−15 g cm−3) are shown in comparison with the calculated and model values for solar maximum conditions. Both stationary (ST) and non-stationary (NST) results are presented. Daily F10.7 and Ap indices are given in the last two columns. Dashes on September 14, 2002 mean that no solution was found in that particular coincidence. LT = UT-5.
| Date | UT | h red, km | ρ obs | ρ cal (ST) | ρ cal (NST) | ρ JBmod | ρ MSISE | F 10.7 | Ap |
|---|---|---|---|---|---|---|---|---|---|
| Sep. 17, 2001 | 1630 | 440 | 3.99 | 4.68 | 4.02 | 4.59 | 6.32 | 199 | 6 |
| Sep. 20, 2001 | 1615 | 440 | 3.55 | 3.68 | 2.54 | 4.04 | 5.59 | 226 | 4 |
| Dec. 19, 2001 | 2000 | 420 | 8.26 | 11.0 | 11.2 | 7.38 | 10.9 | 208 | 8 |
| Jan. 02, 2002 | 1900 | 400 | 12.3 | 15.2 | 14.0 | 12.0 | 14.6 | 231 | 8 |
| Jan. 09, 2002 | 1800 | 400 | 9.77 | 15.2 | 15.3 | 8.44 | 12.3 | 228 | 2 |
| Jun. 11, 2002 | 1615 | 410 | 3.47 | 3.96 | 3.40 | 4.33 | 4.00 | 148 | 8 |
| Sep. 10, 2002 | 2000 | 420 | 7.90 | 6.28 | 7.90 | 7.68 | 8.40 | 220 | 24 |
| Sep. 12, 2002 | 2000 | 410 | 8.96 | 7.25 | 8.26 | 9.02 | 9.75 | 212 | 14 |
| Sep. 14, 2002 | 1930 | 410 | 8.98 | 8.41 | – | 8.24 | 8.71 | 207 | 8 |
| Sep. 16, 2002 | 1915 | 410 | 8.75 | 8.36 | 10.7 | 8.60 | 8.33 | 183 | 6 |
| Sep. 18, 2002 | 1900 | 410 | 8.61 | 7.81 | 6.17 | 9.03 | 9.20 | 177 | 14 |
| Sep. 20, 2002 | 1900 | 410 | 7.42 | 8.01 | 8.22 | 6.86 | 7.78 | 164 | 4 |
| Sep. 26, 2002 | 1815 | 400 | 7.17 | 7.06 | 6.89 | 7.07 | 8.26 | 150 | 5 |
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