ASTROSAT CZTI

Data Quality Report

Orbit 44338

Creation date: 2024-06-27T23:02:20.231327
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/AS1A13_004T09_9000005992_44338cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44338cztM0_level2_quad_clean.evt
Size (bytes)1,966,818,240491,402,880
Size1.8 GB 468.6 MB
Events in quadrant A21,303,0723,246,698
Events in quadrant B15,991,2533,331,002
Events in quadrant C14,206,5553,250,965
Events in quadrant D18,920,5372,930,182

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06240
B06240
C06240
D06240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0879797
B0685604
C0647354
D0782704

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A308316632.150433%
B308336111.981643%
C308341740.564312%
D308339763.165440%

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 32833 30834 201 201 0.61% 0.65%
B 32833 30837 287 287 0.87% 0.93%
C 32834 30838 79 79 0.24% 0.26%
D 32833 30836 690 690 2.10% 2.24%

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 6811651 9585.05 3439 3359 710.3
A 15 223 803198 1126.05 3439 3359 710.3
A 10 248 139952 192.3 3439 3359 710.3
B 0 219 1318559 1967.39 3427 3325 668.5
B 5 255 286390 423.42 3427 3325 668.5
B 0 190 163523 239.63 3427 3325 668.5
C 14 254 621105 774.58 3399 3417 797.5
C 14 96 127989 156.21 3399 3417 797.5
C 3 233 64334 76.39 3399 3417 797.5
D 13 249 1586412 1876.54 3366 3268 843.6
D 2 153 569523 671.2 3366 3268 843.6
D 12 233 549924 647.96 3366 3268 843.6

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