ASTROSAT CZTI

Data Quality Report

Orbit 20231117_A13_034T05_9000005928_level2

Creation date: 2023-11-20T13:33:25.084372
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/AS1A13_034T05_9000005928cztM0_level2.fits modeM0/AS1A13_034T05_9000005928cztM0_level2_quad_clean.evt
Size (bytes)177,442,560161,472,960
Size169.2 MB 154.0 MB
Events in quadrant A1,036,556910,420
Events in quadrant B1,019,792925,550
Events in quadrant C1,049,408879,246
Events in quadrant D883,298790,394

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0542080
B0424820
C0455850
D0536460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04120
B04120
C04120
D04120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200848464.212308%
B200844732.355109%
C200843651.817367%
D2008412436.189006%

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 22284 20082 0 0 0.00% 0.00%
B 22284 20084 0 0 0.00% 0.00%
C 22284 20084 0 0 0.00% 0.00%
D 22284 20077 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 7 110 884 8.85 270 252 71.4
A 0 29 817 7.91 270 252 71.4
A 15 236 816 7.9 270 252 71.4
B 2 9 949 12.12 269 254 57.4
B 3 17 744 8.54 269 254 57.4
B 2 8 737 8.42 269 254 57.4
C 1 81 818 7.57 276 256 74.2
C 3 203 815 7.53 276 256 74.2
C 3 202 810 7.46 276 256 74.2
D 10 189 653 5.97 252 228 71.2
D 3 159 642 5.81 252 228 71.2
D 4 63 632 5.67 252 228 71.2

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