ASTROSAT CZTI

Data Quality Report

Orbit 37043

Creation date: 2024-06-27T21:34:55.605368
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/AS1T05_044T01_9000005270_37043cztM0_level2.evt modeM0/AS1T05_044T01_9000005270_37043cztM0_level2_quad_clean.evt
Size (bytes)159,678,72029,505,600
Size152.3 MB 28.1 MB
Events in quadrant A943,910213,202
Events in quadrant B1,118,304212,605
Events in quadrant C1,125,535201,317
Events in quadrant D1,551,357162,040

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038001
B042611
C042991
D055191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1392130.933908%
B1392523.735632%
C1392765.459770%
D139336626.274228%

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 1392 1392 10 10 0.72% 0.72%
B 1392 1392 36 36 2.59% 2.59%
C 1392 1392 66 66 4.74% 4.74%
D 1393 1393 350 350 25.13% 25.13%

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 11 254 110361 2924.08 178 175 37.7
A 10 83 108638 2878.36 178 175 37.7
A 13 248 26769 705.74 178 175 37.7
B 0 182 97639 2817.83 175 172 34.6
B 5 172 96910 2796.76 175 172 34.6
B 5 32 51372 1480.22 175 172 34.6
C 0 10 265106 6677.71 168 169 39.7
C 1 23 89991 2263.96 168 169 39.7
C 15 214 61222 1538.84 168 169 39.7
D 2 250 521666 14063.43 144 139 37.1
D 12 233 323173 8710.89 144 139 37.1
D 12 235 62418 1679.41 144 139 37.1

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