ASTROSAT CZTI

Data Quality Report

Orbit 13022

Creation date: 2024-06-27T16:35:28.657723
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/AS1A04_149T01_9000001918_13022cztM0_level2.evt modeM0/AS1A04_149T01_9000001918_13022cztM0_level2_quad_clean.evt
Size (bytes)25,842,2407,591,680
Size24.6 MB 7.2 MB
Events in quadrant A178,17649,219
Events in quadrant B173,75250,123
Events in quadrant C169,07848,602
Events in quadrant D231,08845,673

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08051
B08030
C07960
D09660

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A39600.000000%
B39600.000000%
C39610.252525%
D39630.757576%

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 397 397 0 0 0.00% 0.00%
B 397 397 0 0 0.00% 0.00%
C 397 397 0 0 0.00% 0.00%
D 397 397 4 4 1.01% 1.01%

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 12 189 11704 1084.73 42 41 10.8
A 1 162 1171 105.1 42 41 10.8
A 0 226 371 30.69 42 41 10.8
B 4 239 2486 234.6 43 42 10.4
B 0 219 1846 173.17 43 42 10.4
B 12 111 951 87.26 43 42 10.4
C 12 4 2572 215.56 42 42 11.7
C 13 61 304 22.32 42 42 11.7
C 3 202 116 6.3 42 42 11.7
D 1 52 77100 6647.52 40 39 11.6
D 2 234 1157 96.44 40 39 11.6
D 12 0 576 46.32 40 39 11.6

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