| B21&B31_last 30 days | Band20
 | RGB(20-31-32) | RGB(29-31-32) |
| 2012-05-12+16h (GMT): dT(B20-B31)= 0.43; IQN = 347 |
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| 2012-05-12+12h (GMT): dT(B20-B31)= 1.89; IQN = 863 |
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| 2012-05-11+17h (GMT): dT(B20-B31)= 0.13; IQN = xx1079 |
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| 2012-05-10+16h (GMT): dT(B20-B31)= 0.03; IQN = 8 |
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| 2012-05-09+16h (GMT): dT(B20-B31)= 0.39; IQN = xx1144 |
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| 2012-05-09+13h (GMT): dT(B20-B31)= 1.06; IQN = 829 |
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| 2012-05-08+12h (GMT): dT(B20-B31)= 1.78; IQN = 231 |
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| 2012-05-07+16h (GMT): dT(B20-B31)= 0.75; IQN = 819 |
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| 2012-05-07+13h (GMT): dT(B20-B31)= 0.8; IQN = xx1193 |
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| 2012-05-07+11h (GMT): dT(B20-B31)= 0.71; IQN = xx1359 |
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| 2012-05-06+17h (GMT): dT(B20-B31)= 0.88; IQN = 593 |
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| 2012-05-06+12h (GMT): dT(B20-B31)= 4.56; IQN = 75 |
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| 2012-05-05+16h (GMT): dT(B20-B31)= 0.96; IQN = 498 |
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| 2012-05-05+12h (GMT): dT(B20-B31)= 1.39; IQN = 1011 |
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| 2012-05-04+17h (GMT): dT(B20-B31)= 0.97; IQN = 939 |
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| 2012-05-04+13h (GMT): dT(B20-B31)= 11.69; IQN = 396 |
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| 2012-05-03+16h (GMT): dT(B20-B31)= -4.13; IQN = 190 |
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| 2012-05-03+12h (GMT): dT(B20-B31)= 0.4; IQN = 716 |
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| 2012-05-02+13h (GMT): dT(B20-B31)= 11.1; IQN = 718 |
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| 2012-05-01+12h (GMT): dT(B20-B31)= 9.27; IQN = 391 |
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| 2012-04-30+16h (GMT): dT(B20-B31)= 0.88; IQN = 986 |
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| 2012-04-30+13h (GMT): dT(B20-B31)= 2.33; IQN = 1017 |
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| 2012-04-29+17h (GMT): dT(B20-B31)= 13.68; IQN = 441 |
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| 2012-04-29+12h (GMT): dT(B20-B31)= 12.36; IQN = 76 |
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| 2012-04-28+16h (GMT): dT(B20-B31)= 0.36; IQN = 646 |
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| 2012-04-28+13h (GMT): dT(B20-B31)= 0.89; IQN = xx1359 |
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| 2012-04-28+12h (GMT): dT(B20-B31)= 1.55; IQN = xx1164 |
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| 2012-04-27+17h (GMT): dT(B20-B31)= 0.48; IQN = 800 |
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| 2012-04-27+13h (GMT): dT(B20-B31)= -0.25; IQN = 222 |
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| 2012-04-26+16h (GMT): dT(B20-B31)= 0.07; IQN = 347 |
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