ASTROSAT CZTI

Data Quality Report

Orbit 04582

Creation date: 2024-06-27T14:44:03.491706
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/AS1G05_233T10_9000000570_04582cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04582cztM0_level2_quad_clean.evt
Size (bytes)1,150,577,280209,027,520
Size1.1 GB 199.3 MB
Events in quadrant A7,946,4771,306,844
Events in quadrant B9,726,0951,282,305
Events in quadrant C7,666,4501,277,013
Events in quadrant D8,308,1941,244,091

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03658057
B04081945
C03601454
D03802676

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03600
B03604
C03602
D03602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A177111090.615437%
B177151680.948349%
C17709420.237168%
D177091290.728443%

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 19754 17738 33 33 0.17% 0.19%
B 19754 17738 57 57 0.29% 0.32%
C 19754 17738 4 4 0.02% 0.02%
D 19754 17738 62 62 0.31% 0.35%

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 15 174 107567 259.56 1989 1940 406.9
A 0 13 80834 193.87 1989 1940 406.9
A 0 50 42575 99.86 1989 1940 406.9
B 14 167 1137786 2967.65 2004 1952 382.7
B 15 204 412885 1073.67 2004 1952 382.7
B 10 16 212694 550.62 2004 1952 382.7
C 9 54 41452 88.11 1934 1941 448.5
C 9 247 18550 37.04 1934 1941 448.5
C 13 61 16025 31.41 1934 1941 448.5
D 13 235 212989 450.29 1935 1871 468.8
D 13 25 193775 409.31 1935 1871 468.8
D 2 136 184214 388.92 1935 1871 468.8

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