ASTROSAT CZTI

Data Quality Report

Orbit 28423

Creation date: 2024-06-27T19:49:57.742185
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/AS1A10_067T01_9000004076_28423cztM0_level2.evt modeM0/AS1A10_067T01_9000004076_28423cztM0_level2_quad_clean.evt
Size (bytes)189,408,96037,555,200
Size180.6 MB 35.8 MB
Events in quadrant A1,042,536257,317
Events in quadrant B1,039,414262,603
Events in quadrant C1,041,691248,530
Events in quadrant D2,467,640216,077

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043210
B043120
C043460
D087360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081
B084
C081
D082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2099401.905669%
B2099321.524535%
C2094411.957975%
D208249023.535062%

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 2977 2110 0 0 0.00% 0.00%
B 2977 2108 0 0 0.00% 0.00%
C 2977 2100 1 1 0.03% 0.05%
D 2976 2091 423 423 14.21% 20.23%

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 3485 57.05 268 262 56.5
A 13 254 2731 43.7 268 262 56.5
A 3 137 2720 43.51 268 262 56.5
B 12 111 6478 118.22 262 256 52.6
B 11 111 5857 106.42 262 256 52.6
B 14 111 5608 101.69 262 256 52.6
C 14 238 39923 659.93 250 250 60.1
C 7 220 26448 435.78 250 250 60.1
C 13 61 1693 24.0 250 250 60.1
D 1 52 1388358 24664.28 230 224 56.3
D 8 195 110697 1962.88 230 224 56.3
D 7 238 52591 930.45 230 224 56.3

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