ASTROSAT CZTI

Data Quality Report

Orbit 07294

Creation date: 2024-06-27T15:18:00.251976
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/AS1G06_137T01_9000001000_07294cztM0_level2.evt modeM0/AS1G06_137T01_9000001000_07294cztM0_level2_quad_clean.evt
Size (bytes)321,834,24077,947,200
Size306.9 MB 74.3 MB
Events in quadrant A2,333,557502,984
Events in quadrant B2,371,504524,712
Events in quadrant C2,351,861509,013
Events in quadrant D2,356,874481,074

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101982
B0103291
C0102311
D0105441

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4881200.409752%
B4881200.409752%
C4881140.286826%
D4881360.737554%

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 6236 4882 4 4 0.06% 0.08%
B 6236 4882 2 2 0.03% 0.04%
C 6236 4882 1 1 0.02% 0.02%
D 6236 4882 26 26 0.42% 0.53%

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 8 15 48231 400.88 582 570 118.9
A 15 234 34849 288.32 582 570 118.9
A 15 239 8692 68.31 582 570 118.9
B 0 214 52783 458.42 596 582 113.9
B 12 111 11384 94.86 596 582 113.9
B 11 111 9051 74.37 596 582 113.9
C 1 16 51120 381.56 571 576 132.5
C 7 247 37598 279.48 571 576 132.5
C 9 68 34513 256.19 571 576 132.5
D 14 34 94601 681.5 563 546 138.0
D 2 14 89178 642.2 563 546 138.0
D 12 233 12581 87.2 563 546 138.0

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