ASTROSAT CZTI

Data Quality Report

Orbit 07586

Creation date: 2024-06-27T15:21:19.265151
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/AS1A02_024T01_9000001044_07586cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07586cztM0_level2_quad_clean.evt
Size (bytes)984,219,840144,593,280
Size938.6 MB 137.9 MB
Events in quadrant A7,081,436906,646
Events in quadrant B5,770,584922,439
Events in quadrant C7,078,942915,769
Events in quadrant D9,103,903842,551

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284134
B0244253
C0284923
D0347563

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114352021.766506%
B114351331.163096%
C114353603.148229%
D1143510188.902492%

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 13805 11437 0 0 0.00% 0.00%
B 13805 11437 3 3 0.02% 0.03%
C 13805 11437 122 122 0.88% 1.07%
D 13805 11437 795 795 5.76% 6.95%

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 15 239 1499214 5165.15 1445 1416 290.0
A 0 128 15025 46.93 1445 1416 290.0
A 3 1 14065 43.62 1445 1416 290.0
B 0 214 42517 148.92 1457 1424 275.9
B 11 51 29037 100.07 1457 1424 275.9
B 12 111 28216 97.09 1457 1424 275.9
C 9 68 1497859 4593.55 1414 1427 325.8
C 8 229 39137 115.76 1414 1427 325.8
C 1 16 24649 71.28 1414 1427 325.8
D 2 14 1946629 5718.23 1386 1347 340.2
D 2 152 1545766 4539.88 1386 1347 340.2
D 5 233 128882 374.89 1386 1347 340.2

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