ASTROSAT CZTI

Data Quality Report

Orbit 46391

Creation date: 2024-06-27T23:22:37.308915
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_070T04_9000006204_46391cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46391cztM0_level2_quad_clean.evt
Size (bytes)321,497,28071,795,520
Size306.6 MB 68.5 MB
Events in quadrant A4,063,486469,495
Events in quadrant B2,228,737499,131
Events in quadrant C2,753,332464,515
Events in quadrant D2,514,960433,616

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150793
B096061
C0111831
D0105181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43682255.151099%
B4368962.197802%
C43681683.846154%
D4368972.220696%

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 4418 4369 3 3 0.07% 0.07%
B 4418 4369 1 1 0.02% 0.02%
C 4418 4369 109 109 2.47% 2.49%
D 4418 4369 54 54 1.22% 1.24%

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 1833135 16606.47 522 507 110.4
A 15 14 177159 1600.74 522 507 110.4
A 13 248 22326 197.71 522 507 110.4
B 5 32 47818 452.04 521 505 104.7
B 0 189 34411 323.94 521 505 104.7
B 0 155 23822 222.77 521 505 104.7
C 14 254 606636 4987.42 511 513 121.5
C 12 2 57081 465.46 511 513 121.5
C 3 233 45522 370.35 511 513 121.5
D 1 52 247467 1887.98 514 498 130.8
D 7 96 115348 877.98 514 498 130.8
D 2 120 78586 596.95 514 498 130.8

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