ASTROSAT CZTI

Data Quality Report

Orbit 40233

Creation date: 2024-06-27T22:13:56.838256
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_40233cztM0_level2.fits modeM0/AS1T05_086T01_9000005534_40233cztM0_level2_quad_clean.evt
Size (bytes)328,112,64098,775,360
Size312.9 MB 94.2 MB
Events in quadrant A3,155,306656,362
Events in quadrant B2,918,321679,500
Events in quadrant C2,791,839654,798
Events in quadrant D2,826,551593,450

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128363
B0125832
C0118942
D0125982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5823350.601065%
B5823350.601065%
C5823110.188906%
D5823510.875837%

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 8989 5825 25 25 0.28% 0.43%
B 8989 5825 25 25 0.28% 0.43%
C 8989 5825 9 9 0.10% 0.15%
D 8989 5824 39 39 0.43% 0.67%

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 515017 3870.68 644 631 132.9
A 13 248 80017 597.37 644 631 132.9
A 6 10 25378 186.22 644 631 132.9
B 0 229 141229 1123.14 644 628 125.2
B 5 255 90615 718.83 644 628 125.2
B 0 245 35966 282.28 644 628 125.2
C 15 214 250562 1693.68 630 634 147.6
C 0 10 23978 158.19 630 634 147.6
C 9 187 21572 141.89 630 634 147.6
D 12 227 170158 1108.06 625 608 153.0
D 13 249 65497 424.07 625 608 153.0
D 12 218 61017 394.79 625 608 153.0

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