ASTROSAT CZTI

Data Quality Report

Orbit 09384

Creation date: 2024-06-27T15:45:20.841132
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/AS1A03_057T01_9000001330_09384cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09384cztM0_level2_quad_clean.evt
Size (bytes)131,558,40029,854,080
Size125.5 MB 28.5 MB
Events in quadrant A1,084,504179,207
Events in quadrant B944,081201,291
Events in quadrant C886,786199,648
Events in quadrant D935,297183,559

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031
B031
C032
D031

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116317220
B098015713
C095785493
D0102506119

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09660
B09656
C09666
D09556

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1798241.334816%
B1949170.872242%
C2007140.697559%
D1912150.784519%

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 5054 2538 1 1 0.02% 0.04%
B 5056 2719 0 0 0.00% 0.00%
C 5057 2760 0 0 0.00% 0.00%
D 5056 2672 1 1 0.02% 0.04%

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 8 5 127143 2843.69 207 203 44.6
A 1 162 69176 1545.12 207 203 44.6
A 1 178 28336 630.23 207 203 44.6
B 0 214 18370 399.0 226 221 45.5
B 0 187 17762 385.63 226 221 45.5
B 0 219 12254 264.54 226 221 45.5
C 8 128 4247 74.37 225 225 54.1
C 8 112 2193 36.38 225 225 54.1
C 13 61 1672 26.75 225 225 54.1
D 8 195 27741 468.14 212 206 58.8
D 12 233 27705 467.53 212 206 58.8
D 1 52 23962 403.89 212 206 58.8

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