Number of valid chl pixels
Year, jdaystart, jdayend, mask 1-6
1997 241 248 0 0 0 0 0 0
1997 249 256 0 0 0 0 0 0
1997 257 264 0 0 0 0 0 0
1997 265 272 0 0 0 0 0 0
1997 273 280 0 0 0 0 0 0
1997 281 288 0 0 0 0 0 0
1997 289 296 0 0 0 0 0 0
1997 297 304 6 6 0 0 0 0
1997 305 312 0 0 0 0 0 0
1997 313 320 0 0 0 0 0 0
1997 321 328 0 0 0 0 0 0
1997 329 336 0 0 0 0 0 0
1997 337 344 5 5 0 5 0 0
1997 345 352 10 10 0 6 0 0
1997 353 360 7 7 0 2 0 0
1997 361 365 4 4 0 0 0 0