| B21&B31_last 30 days | Band20
   | RGB(20-31-32) | RGB(29-31-32) | 
| 2024-04-28+14h (GMT):   dT(B20-B31)= 24.97;   IQN = xx1073 | 
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| 2024-04-27+19h (GMT):   dT(B20-B31)= 16.07;   IQN = 342 | 
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| 2024-04-27+15h (GMT):   dT(B20-B31)= 31.51;   IQN = 478 | 
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| 2024-04-26+18h (GMT):   dT(B20-B31)= 13.86;   IQN = 747 | 
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| 2024-04-26+14h (GMT):   dT(B20-B31)= 21.43;   IQN = 603 | 
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| 2024-04-25+19h (GMT):   dT(B20-B31)= 6.66;   IQN = 778 | 
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| 2024-04-25+15h (GMT):   dT(B20-B31)= 5.02;   IQN = 930 | 
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| 2023-10-16+18h (GMT):   dT(B20-B31)= 1.2;   IQN = 976 | 
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| 2023-10-16+14h (GMT):   dT(B20-B31)= 2.24;   IQN = 286 | 
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| 2023-10-15+18h (GMT):   dT(B20-B31)= 0.54;   IQN = 532 | 
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| 2023-10-14+18h (GMT):   dT(B20-B31)= 10.68;   IQN = 575 | 
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| 2023-10-14+14h (GMT):   dT(B20-B31)= 2.5;   IQN = 152 | 
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| 2023-10-13+19h (GMT):   dT(B20-B31)= 0.68;   IQN = 933 | 
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| 2023-10-13+14h (GMT):   dT(B20-B31)= 2.06;   IQN = 936 | 
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| 2023-10-12+18h (GMT):   dT(B20-B31)= 1.7;   IQN = 175 | 
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| 2023-10-12+15h (GMT):   dT(B20-B31)= 3.16;   IQN = 608 | 
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| 2023-10-11+14h (GMT):   dT(B20-B31)= 1.46;   IQN = 481 | 
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| 2023-10-10+18h (GMT):   dT(B20-B31)= 0.78;   IQN = 223 | 
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| 2023-10-10+15h (GMT):   dT(B20-B31)= 2.78;   IQN = 1045 | 
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| 2023-10-09+18h (GMT):   dT(B20-B31)= 3;   IQN = 887 | 
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| 2023-10-09+14h (GMT):   dT(B20-B31)= 4.54;   IQN = 42 | 
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| 2023-10-08+19h (GMT):   dT(B20-B31)= 0.76;   IQN = 622 | 
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| 2023-10-08+14h (GMT):   dT(B20-B31)= 0.14;   IQN = xx1132 | 
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| 2023-10-07+18h (GMT):   dT(B20-B31)= 4.34;   IQN = 489 | 
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| 2023-10-07+15h (GMT):   dT(B20-B31)= 0.83;   IQN = 394 | 
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| 2023-10-06+19h (GMT):   dT(B20-B31)= -0.15;   IQN = 1020 | 
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| 2023-10-06+14h (GMT):   dT(B20-B31)= 9.82;   IQN = 694 | 
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| 2023-10-05+18h (GMT):   dT(B20-B31)= 0.41;   IQN = 93 | 
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| 2023-10-05+15h (GMT):   dT(B20-B31)= 1.33;   IQN = 850 | 
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| 2023-10-04+14h (GMT):   dT(B20-B31)= 0.88;   IQN = 240 | 
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