ASTROSAT CZTI

Data Quality Report

Orbit 45739

Creation date: 2024-06-27T23:15:36.745786
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/AS1T05_183T01_9000006124_45739cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45739cztM0_level2_quad_clean.evt
Size (bytes)627,609,600128,571,840
Size598.5 MB 122.6 MB
Events in quadrant A7,512,277851,993
Events in quadrant B5,225,507875,531
Events in quadrant C4,553,434848,677
Events in quadrant D5,331,484769,048

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277354
B0207581
C0192271
D0212781

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140551912679464140548509794350
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78702993.799238%
B78702933.722999%
C78702783.532402%
D78703103.939009%

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 7870 7870 13 13 0.17% 0.17%
B 7870 7870 76 76 0.97% 0.97%
C 7870 7870 189 189 2.40% 2.40%
D 7870 7870 248 248 3.15% 3.15%

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 10 83 3603381 18527.85 924 904 194.4
A 12 189 151482 774.44 924 904 194.4
A 13 248 63620 322.55 924 904 194.4
B 3 112 578108 3117.93 923 895 185.1
B 4 171 412630 2224.06 923 895 185.1
B 5 172 112804 604.5 923 895 185.1
C 14 254 436877 2035.32 902 909 214.2
C 12 2 427702 1992.48 902 909 214.2
C 2 14 43275 197.79 902 909 214.2
D 1 52 1081293 4661.9 905 874 231.8
D 1 47 194605 835.93 905 874 231.8
D 13 249 168315 722.49 905 874 231.8

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