ASTROSAT CZTI

Data Quality Report

Orbit 08729

Creation date: 2024-06-27T15:34:30.455754
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/AS1G07_060T01_9000001200_08729cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08729cztM0_level2_quad_clean.evt
Size (bytes)190,359,36038,903,040
Size181.5 MB 37.1 MB
Events in quadrant A1,433,987241,126
Events in quadrant B1,446,063249,431
Events in quadrant C1,351,996246,272
Events in quadrant D1,336,930237,196

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060802
B061481
C059311
D059361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2855170.595447%
B2855321.120841%
C2855150.525394%
D2855120.420315%

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 4075 2856 4 4 0.10% 0.14%
B 4075 2856 6 6 0.15% 0.21%
C 4075 2856 1 1 0.02% 0.04%
D 4075 2856 0 0 0.00% 0.00%

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 13 251 55386 758.63 347 339 72.6
A 15 236 15630 210.73 347 339 72.6
A 15 174 14514 195.35 347 339 72.6
B 5 255 46056 682.2 351 342 67.0
B 4 48 11570 167.56 351 342 67.0
B 12 111 6903 97.91 351 342 67.0
C 14 234 8674 104.09 342 343 80.0
C 14 67 3326 37.27 342 343 80.0
C 13 61 2757 30.16 342 343 80.0
D 11 129 11922 141.22 339 331 82.1
D 2 234 9807 115.45 339 331 82.1
D 2 152 8682 101.75 339 331 82.1

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