ASTROSAT CZTI

Data Quality Report

Orbit 36465

Creation date: 2022-07-11T13:00:48.512970
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/AS1A09_014T01_9000005204_36465cztM0_level2.evt modeM0/AS1A09_014T01_9000005204_36465cztM0_level2_quad_clean.evt
Size (bytes)126,547,20032,650,560
Size120.7 MB 31.1 MB
Events in quadrant A852,548225,428
Events in quadrant B1,036,354217,706
Events in quadrant C960,121217,979
Events in quadrant D876,034213,111

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034501
B039991
C036821
D035281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A154730.193924%
B1547754.848093%
C1547634.072398%
D1548110.710594%

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 1547 1547 0 0 0.00% 0.00%
B 1547 1547 60 60 3.88% 3.88%
C 1547 1547 35 35 2.26% 2.26%
D 1548 1548 8 8 0.52% 0.52%

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 10 83 82187 2044.73 196 192 40.1
A 6 10 4081 96.98 196 192 40.1
A 13 254 3015 70.4 196 192 40.1
B 5 172 236739 6484.71 186 181 36.5
B 15 85 22278 605.74 186 181 36.5
B 0 190 9843 264.86 186 181 36.5
C 0 10 153635 3426.28 187 189 44.8
C 15 214 72319 1610.58 187 189 44.8
C 0 207 1662 32.89 187 189 44.8
D 10 199 47221 973.96 193 189 48.3
D 2 153 19187 393.42 193 189 48.3
D 2 120 16233 332.25 193 189 48.3

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