ASTROSAT CZTI

Data Quality Report

Orbit 09564

Creation date: 2024-06-27T15:47:46.498403
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/AS1G07_069T01_9000001356_09564cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09564cztM0_level2_quad_clean.evt
Size (bytes)748,278,720122,950,080
Size713.6 MB 117.3 MB
Events in quadrant A5,359,277747,848
Events in quadrant B5,327,518747,230
Events in quadrant C5,009,348743,083
Events in quadrant D6,210,622714,303

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02325351
B02314258
C02270752
D026021111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111421191.068031%
B111381231.104328%
C11141800.718068%
D111382592.325373%

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 13201 11159 1 1 0.01% 0.01%
B 13201 11152 1 1 0.01% 0.01%
C 13201 11156 1 1 0.01% 0.01%
D 13201 11149 149 149 1.13% 1.34%

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 1 162 137393 501.25 1331 1304 271.5
A 1 178 41575 148.33 1331 1304 271.5
A 1 161 40873 145.74 1331 1304 271.5
B 0 214 90100 355.31 1324 1291 249.9
B 12 111 28560 109.1 1324 1291 249.9
B 0 187 25626 97.36 1324 1291 249.9
C 13 61 9665 28.47 1283 1289 294.2
C 12 4 5082 12.89 1283 1289 294.2
C 3 202 3086 6.11 1283 1289 294.2
D 1 52 591411 1922.82 1274 1244 306.9
D 2 16 330768 1073.62 1274 1244 306.9
D 7 71 184270 596.32 1274 1244 306.9

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