ASTROSAT CZTI

Data Quality Report

Orbit 05431

Creation date: 2024-06-27T14:55:07.744794
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/AS1G05_132T01_9000000686_05431cztM0_level2.evt modeM0/AS1G05_132T01_9000000686_05431cztM0_level2_quad_clean.evt
Size (bytes)518,158,08074,537,280
Size494.2 MB 71.1 MB
Events in quadrant A3,501,406436,689
Events in quadrant B3,885,236433,170
Events in quadrant C3,435,566442,778
Events in quadrant D4,354,357415,906

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158653
B0167332
C0158542
D0184622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75931131.488213%
B75931672.199394%
C75931151.514553%
D75932873.779797%

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 8868 7595 7 7 0.08% 0.09%
B 8868 7595 14 14 0.16% 0.18%
C 8868 7595 0 0 0.00% 0.00%
D 8868 7595 110 110 1.24% 1.45%

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 15 174 41255 218.64 894 873 184.7
A 0 226 9192 45.04 894 873 184.7
A 0 50 9021 44.12 894 873 184.7
B 15 204 234985 1346.96 903 880 173.8
B 4 48 71966 409.0 903 880 173.8
B 0 219 29415 164.18 903 880 173.8
C 9 247 21799 103.04 869 872 203.1
C 13 61 7122 30.77 869 872 203.1
C 12 4 5733 23.93 869 872 203.1
D 2 33 355661 1690.99 855 830 209.8
D 2 152 300041 1425.93 855 830 209.8
D 7 203 162709 771.45 855 830 209.8

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