ASTROSAT CZTI

Data Quality Report

Orbit 43414

Creation date: 2024-06-27T22:51:41.979656
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/AS1A12_018T01_9000005874_43414cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43414cztM0_level2_quad_clean.evt
Size (bytes)341,553,60087,215,040
Size325.7 MB 83.2 MB
Events in quadrant A3,152,291581,439
Events in quadrant B2,447,820607,387
Events in quadrant C2,589,343580,616
Events in quadrant D4,054,060511,326

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125872
B0107273
C0110052
D0157792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51341021.986755%
B5133190.370154%
C5133120.233781%
D51332735.318527%

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 7016 5135 86 86 1.23% 1.67%
B 7015 5134 10 10 0.14% 0.19%
C 7015 5134 7 7 0.10% 0.14%
D 7015 5134 276 276 3.93% 5.38%

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 599004 5317.25 551 540 112.6
A 15 237 366698 3253.25 551 540 112.6
A 13 6 23609 204.96 551 540 112.6
B 0 189 148249 1390.55 560 546 106.2
B 0 245 54121 504.38 560 546 106.2
B 5 255 19530 178.73 560 546 106.2
C 15 214 214886 1676.94 552 556 127.8
C 3 233 206275 1609.57 552 556 127.8
C 15 159 12935 96.85 552 556 127.8
D 1 52 936674 7090.62 538 523 132.0
D 2 16 278641 2106.53 538 523 132.0
D 1 47 174845 1320.36 538 523 132.0

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