ASTROSAT CZTI

Data Quality Report

Orbit 20170714_A03_029T01_9000001384_level2

Creation date: 2025-11-15T11:20:11.717052
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/AS1A03_029T01_9000001384cztM0_level2.fits modeM0/AS1A03_029T01_9000001384cztM0_level2_quad_clean.evt
Size (bytes)900,601,920884,278,080
Size858.9 MB 843.3 MB
Events in quadrant A5,422,5645,241,107
Events in quadrant B5,276,3405,280,857
Events in quadrant C5,373,1285,065,203
Events in quadrant D4,620,3444,612,479

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01997780
B02001560
C01992770
D02317900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01450
D01450

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019620
B019540
C019680
D019600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9603114791.540128%
B9600310491.092674%
C960217280.758167%
D9595018381.915581%

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 111684 96391 0 0 0.00% 0.00%
B 111684 96408 0 0 0.00% 0.00%
C 111684 96401 0 0 0.00% 0.00%
D 111684 96360 0 0 0.00% 0.00%

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 0 29 5167 10.94 1407 1317 351.8
A 7 110 4484 9.0 1407 1317 351.8
A 0 30 4069 7.82 1407 1317 351.8
B 2 9 4418 11.26 1389 1319 275.3
B 3 17 3528 8.02 1389 1319 275.3
B 12 226 3513 7.97 1389 1319 275.3
C 12 241 3803 6.75 1420 1313 368.9
C 2 191 3617 6.25 1420 1313 368.9
C 9 188 3535 6.02 1420 1313 368.9
D 7 5 3259 5.93 1316 1195 348.1
D 6 231 3259 5.93 1316 1195 348.1
D 7 3 3203 5.77 1316 1195 348.1

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