ASTROSAT CZTI

Data Quality Report

Orbit 48010

Creation date: 2024-09-04T19:24:09.092629
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_218T01_9000006386_48010cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48010cztM0_level2_quad_clean.evt
Size (bytes)582,013,440100,566,720
Size555.1 MB 95.9 MB
Events in quadrant A7,794,139656,396
Events in quadrant B3,287,214731,662
Events in quadrant C2,900,399696,817
Events in quadrant D7,063,146510,481

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278012
B0143212
C0133902
D0256393

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64466089.432206%
B6446881.365188%
C6446320.496432%
D6445129920.155159%

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 7586 6447 391 391 5.15% 6.06%
B 7586 6447 24 24 0.32% 0.37%
C 7586 6447 17 17 0.22% 0.26%
D 7585 6446 1379 1379 18.18% 21.39%

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 4244061 29417.52 698 683 144.2
A 0 31 798992 5534.33 698 683 144.2
A 13 248 39744 270.79 698 683 144.2
B 0 200 162300 1135.18 721 701 142.4
B 5 63 96324 671.72 721 701 142.4
B 0 198 82857 577.12 721 701 142.4
C 15 208 57361 340.94 700 704 166.2
C 14 254 41913 247.98 700 704 166.2
C 12 2 30142 177.15 700 704 166.2
D 2 37 3845416 23977.66 636 615 160.3
D 2 165 163525 1015.97 636 615 160.3
D 14 34 158530 984.82 636 615 160.3

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