| B21&B31_last 30 days | Band20
 | RGB(20-31-32) | RGB(29-31-32) |
| 2012-05-12+16h (GMT): dT(B20-B31)= 17.15; IQN = 1013 |
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| 2012-05-12+13h (GMT): dT(B20-B31)= 8.97; IQN = 759 |
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| 2012-05-11+17h (GMT): dT(B20-B31)= 3.72; IQN = 423 |
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| 2012-05-10+16h (GMT): dT(B20-B31)= 0.53; IQN = 686 |
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| 2012-05-09+17h (GMT): dT(B20-B31)= 0.86; IQN = 766 |
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| 2012-05-09+13h (GMT): dT(B20-B31)= 1.49; IQN = 44 |
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| 2012-05-08+12h (GMT): dT(B20-B31)= 13.23; IQN = xx1148 |
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| 2012-05-07+17h (GMT): dT(B20-B31)= 9.17; IQN = xx1057 |
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| 2012-05-07+13h (GMT): dT(B20-B31)= 9.62; IQN = 275 |
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| 2012-05-06+17h (GMT): dT(B20-B31)= 0.97; IQN = 33 |
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| 2012-05-06+12h (GMT): dT(B20-B31)= 1.2; IQN = 842 |
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| 2012-05-05+16h (GMT): dT(B20-B31)= 1.28; IQN = xx1179 |
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| 2012-05-05+13h (GMT): dT(B20-B31)= 1.44; IQN = 602 |
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| 2012-05-04+17h (GMT): dT(B20-B31)= 0.81; IQN = 266 |
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| 2012-05-04+13h (GMT): dT(B20-B31)= 0.94; IQN = 520 |
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| 2012-05-03+16h (GMT): dT(B20-B31)= 0.88; IQN = 837 |
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| 2012-05-03+14h (GMT): dT(B20-B31)= 1.57; IQN = 903 |
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| 2012-05-02+13h (GMT): dT(B20-B31)= 3.04; IQN = 199 |
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| 2012-05-01+14h (GMT): dT(B20-B31)= 2.68; IQN = xx1247 |
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| 2012-05-01+12h (GMT): dT(B20-B31)= 8.62; IQN = xx1306 |
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| 2012-04-30+17h (GMT): dT(B20-B31)= 12.2; IQN = 910 |
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| 2012-04-30+13h (GMT): dT(B20-B31)= 7.69; IQN = 101 |
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| 2012-04-29+17h (GMT): dT(B20-B31)= 7.02; IQN = 181 |
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| 2012-04-29+12h (GMT): dT(B20-B31)= 8.05; IQN = 994 |
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| 2012-04-28+18h (GMT): dT(B20-B31)= 3.22; IQN = xx1276 |
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| 2012-04-28+13h (GMT): dT(B20-B31)= 1.55; IQN = 441 |
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| 2012-04-27+17h (GMT): dT(B20-B31)= 10.66; IQN = 115 |
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| 2012-04-27+12h (GMT): dT(B20-B31)= 2.08; IQN = 693 |
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| 2012-04-26+16h (GMT): dT(B20-B31)= 0.51; IQN = 1010 |
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| 2012-04-26+13h (GMT): dT(B20-B31)= 1.24; IQN = 759 |
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