| Plot ?
 | Symb ?
 | Source *
 | Average    ? | Thresholds ? | N_ data
 | QC1 parameter
 | Data downloads
 | Remarks | 
	
	  | method | value | unit | method | value | 
| 1 |  | QC1DB | MEDIAN | 1.56e-09 | microns/pix^2 | VAL | 0.000000001114,0.000000001988 | 12 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_low/25 mas scale | 
| 2 |  | QC1DB | MEDIAN | -2.15e-10 | microns/pix^2 | VAL | -0.000000000372,-0.000000000034 | 6 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_short/25 mas scale | 
| 3 |  | QC1DB | MEDIAN | -6.52e-10 | microns/pix^2 | VAL | -0.0000000015,0.00000000015 | 8 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_middle/25 mas scale | 
| 4 |  | QC1DB | MEDIAN | 8.31e-10 | microns/pix^2 | VAL | 0.000000000492,0.000000001228 | 17 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_long/25 mas scale | 
| 
 | 
| 5 |  | QC1DB | MEDIAN | 1.62e-09 | microns/pix^2 | VAL | 0.00000000134,0.000000001945 | 10 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_low/100 mas scale | 
| 6 |  | QC1DB | MEDIAN | -4.17e-10 | microns/pix^2 | VAL | -0.000000000533,-0.000000000293 | 12 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_short/100 mas scale | 
| 7 |  | QC1DB | MEDIAN | -5.09e-10 | microns/pix^2 | VAL | -0.000000000639,-0.000000000403 | 10 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_middle/100 mas scale | 
| 8 |  | QC1DB | MEDIAN | 7.54e-10 | microns/pix^2 | VAL | 0.000000000575,0.000000000932 | 11 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_long/100 mas scale | 
| 
 | 
| 9 |  | QC1DB | MEDIAN | 1.55e-09 | microns/pix^2 | VAL | 0.000000001287,0.000000001777 | 35 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_low/250 mas scale | 
| 10 |  | QC1DB | MEDIAN | -4.07e-10 | microns/pix^2 | VAL | -0.000000000544,-0.000000000274 | 42 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_short/250 mas scale | 
| 11 |  | QC1DB | MEDIAN | -4.6e-10 | microns/pix^2 | VAL | -0.000000000554,-0.000000000387 | 14 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_middle/250 mas scale | 
| 12 |  | QC1DB | MEDIAN | 7e-10 | microns/pix^2 | VAL | 0.000000000585,0.000000000819 | 41 | qc_wave_c2_med | this |
    last_yr |
    all | C2 coeff wavelength (microns/pix^2):: K_long/250 mas scale | 
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          | *Data sources: QC1DB: QC1 database; LOCAL: local data source |