ASTROSAT CZTI

Data Quality Report

Orbit 32949

Creation date: 2024-06-27T20:44:00.028197
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/AS1T04_065T01_9000004750_32949cztM0_level2.evt modeM0/AS1T04_065T01_9000004750_32949cztM0_level2_quad_clean.evt
Size (bytes)95,466,24017,498,880
Size91.0 MB 16.7 MB
Events in quadrant A412,829116,605
Events in quadrant B712,345113,210
Events in quadrant C439,834121,833
Events in quadrant D1,256,658101,966

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019682
B027951
C020571
D044011

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A97720.204708%
B97711211.463664%
C97720.204708%
D97721722.210850%

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 977 977 0 0 0.00% 0.00%
B 977 977 76 76 7.78% 7.78%
C 977 977 2 2 0.20% 0.20%
D 977 977 214 214 21.90% 21.90%

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 3 252 4532 190.77 104 102 23.2
A 14 238 2469 101.93 104 102 23.2
A 13 254 1887 76.87 104 102 23.2
B 5 172 248597 11717.32 101 98 21.2
B 15 54 47107 2216.59 101 98 21.2
B 0 219 7104 330.35 101 98 21.2
C 0 10 35780 1413.65 101 102 25.2
C 3 233 2349 89.03 101 102 25.2
C 14 67 1429 52.58 101 102 25.2
D 12 227 310407 12177.7 90 87 25.5
D 7 80 214003 8394.58 90 87 25.5
D 12 218 106530 4177.08 90 87 25.5

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