ASTROSAT CZTI

Data Quality Report

Orbit 53069

Creation date: 2025-07-20T22:20:39.034330
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/AS1C09_011T07_9000006488_53069cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53069cztM0_level2_quad_clean.evt
Size (bytes)1,083,430,08082,149,120
Size1.0 GB 78.3 MB
Events in quadrant A17,320,323129,454
Events in quadrant B7,059,889664,756
Events in quadrant C8,856,801570,289
Events in quadrant D6,280,767593,855

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0565190
B0263256
C0316110
D0238390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7595650985.701119%
B7595111014.614878%
C7595147419.407505%
D75957359.677419%

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 7595 7595 5239 5239 68.98% 68.98%
B 7595 7595 825 825 10.86% 10.86%
C 7595 7595 1234 1234 16.25% 16.25%
D 7595 7595 596 596 7.85% 7.85%

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 9 191 14043182 125900.07 440 430 111.5
A 4 249 410705 3678.31 440 430 111.5
A 7 206 397759 3562.25 440 430 111.5
B 1 255 1770026 11195.59 735 709 158.0
B 10 128 713553 4510.62 735 709 158.0
B 4 81 659891 4171.06 735 709 158.0
C 15 224 2736287 14013.28 711 705 195.2
C 1 241 1164999 5964.2 711 705 195.2
C 15 147 435827 2228.95 711 705 195.2
D 15 78 1074988 5158.17 738 706 208.3
D 12 17 874436 4195.22 738 706 208.3
D 3 224 251379 1203.61 738 706 208.3

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