ASTROSAT CZTI

Data Quality Report

Orbit 07007

Creation date: 2024-06-27T15:14:23.118559
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T01_151T01_9000000960_07007cztM0_level2.evt modeM0/AS1T01_151T01_9000000960_07007cztM0_level2_quad_clean.evt
Size (bytes)777,479,040176,857,920
Size741.5 MB 168.7 MB
Events in quadrant A5,503,5191,166,883
Events in quadrant B5,858,3791,165,483
Events in quadrant C5,345,7731,129,503
Events in quadrant D6,063,6201,104,057

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02320
B02320
C02320
D02320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236713
B0244582
C0235592
D0250632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114352732.387407%
B114352892.527328%
C114351871.635330%
D114352312.020114%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13690 11437 0 0 0.00% 0.00%
B 13690 11437 6 6 0.04% 0.05%
C 13690 11437 0 0 0.00% 0.00%
D 13690 11437 29 29 0.21% 0.25%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 248 17857 57.93 1417 1385 284.3
A 0 226 13805 43.68 1417 1385 284.3
A 12 194 13236 41.68 1417 1385 284.3
B 0 214 157905 589.49 1414 1383 265.5
B 4 239 121142 451.03 1414 1383 265.5
B 3 220 35105 127.0 1414 1383 265.5
C 1 16 18176 54.0 1358 1364 311.4
C 8 128 12539 35.89 1358 1364 311.4
C 13 61 10703 29.99 1358 1364 311.4
D 8 195 327992 968.92 1377 1331 337.1
D 13 105 178119 524.37 1377 1331 337.1
D 14 34 134335 394.5 1377 1331 337.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter