| B21&B31_last 30 days | Band20
   | RGB(20-31-32) | RGB(29-31-32) | 
| 2024-04-28+17h (GMT):   dT(B20-B31)= 3.68;   IQN = 273 | 
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| 2024-04-28+14h (GMT):   dT(B20-B31)= 4.81;   IQN = xx1052 | 
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| 2024-04-27+13h (GMT):   dT(B20-B31)= 4.05;   IQN = 8 | 
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| 2024-04-26+18h (GMT):   dT(B20-B31)= 4.35;   IQN = 180 | 
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| 2024-04-25+17h (GMT):   dT(B20-B31)= 10.88;   IQN = 904 | 
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| 2024-04-25+13h (GMT):   dT(B20-B31)= 9.69;   IQN = 453 | 
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| 2023-10-16+17h (GMT):   dT(B20-B31)= 5.69;   IQN = 46 | 
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| 2023-10-16+13h (GMT):   dT(B20-B31)= 6.57;   IQN = 752 | 
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| 2023-10-15+17h (GMT):   dT(B20-B31)= 5.42;   IQN = xx1167 | 
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| 2023-10-15+14h (GMT):   dT(B20-B31)= 5.92;   IQN = 770 | 
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| 2023-10-14+18h (GMT):   dT(B20-B31)= 3.36;   IQN = 354 | 
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| 2023-10-14+13h (GMT):   dT(B20-B31)= 4.51;   IQN = 314 | 
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| 2023-10-13+17h (GMT):   dT(B20-B31)= 4.96;   IQN = 769 | 
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| 2023-10-12+18h (GMT):   dT(B20-B31)= 5.83;   IQN = 754 | 
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| 2023-10-12+13h (GMT):   dT(B20-B31)= 5.37;   IQN = 114 | 
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| 2023-10-11+17h (GMT):   dT(B20-B31)= 6.09;   IQN = 372 | 
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| 2023-10-11+13h (GMT):   dT(B20-B31)= 7.44;   IQN = 961 | 
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| 2023-10-10+18h (GMT):   dT(B20-B31)= 11.1;   IQN = xx1155 | 
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| 2023-10-10+14h (GMT):   dT(B20-B31)= 6.56;   IQN = 566 | 
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| 2023-10-09+17h (GMT):   dT(B20-B31)= 3.27;   IQN = 24 | 
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| 2023-10-09+13h (GMT):   dT(B20-B31)= 5.25;   IQN = 515 | 
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| 2023-10-08+17h (GMT):   dT(B20-B31)= 3.28;   IQN = xx1076 | 
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| 2023-10-08+14h (GMT):   dT(B20-B31)= 3.73;   IQN = 1011 | 
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| 2023-10-07+18h (GMT):   dT(B20-B31)= 5.93;   IQN = 420 | 
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| 2023-10-07+13h (GMT):   dT(B20-B31)= 6.47;   IQN = 73 | 
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| 2023-10-06+17h (GMT):   dT(B20-B31)= 6.64;   IQN = 677 | 
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| 2023-10-05+18h (GMT):   dT(B20-B31)= 12.07;   IQN = 817 | 
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| 2023-10-05+13h (GMT):   dT(B20-B31)= 10.35;   IQN = 363 | 
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| 2023-10-04+17h (GMT):   dT(B20-B31)= 6.12;   IQN = 279 | 
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| 2023-10-04+13h (GMT):   dT(B20-B31)= 17.51;   IQN = 720 | 
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