ASTROSAT CZTI

Data Quality Report

Orbit 40232

Creation date: 2024-06-27T22:13:55.990155
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/AS1T05_086T01_9000005534_40232cztM0_level2.fits modeM0/AS1T05_086T01_9000005534_40232cztM0_level2_quad_clean.evt
Size (bytes)397,748,16090,987,840
Size379.3 MB 86.8 MB
Events in quadrant A3,168,668625,034
Events in quadrant B2,858,590647,731
Events in quadrant C2,637,835627,300
Events in quadrant D5,625,473466,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128653
B0121282
C0112872
D0207102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5559621.115309%
B5559420.755532%
C5559110.197877%
D5559103618.636445%

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 7292 5560 33 33 0.45% 0.59%
B 7292 5560 26 26 0.36% 0.47%
C 7292 5560 7 7 0.10% 0.13%
D 7292 5559 977 977 13.40% 17.58%

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 10 83 488886 3916.75 607 595 124.7
A 13 248 166189 1328.29 607 595 124.7
A 12 189 113836 908.35 607 595 124.7
B 0 229 266573 2238.36 608 591 118.8
B 5 255 122030 1021.96 608 591 118.8
B 4 171 32413 267.8 608 591 118.8
C 15 214 239774 1707.2 598 603 140.1
C 0 10 26048 181.63 598 603 140.1
C 9 187 14416 98.6 598 603 140.1
D 12 227 3472960 27086.02 514 499 128.2
D 13 249 60591 468.73 514 499 128.2
D 2 250 37757 290.62 514 499 128.2

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