ASTROSAT CZTI

Data Quality Report

Orbit 47081

Creation date: 2024-06-27T23:31:29.078413
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/AS1C09_003T01_9000006298_47081cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47081cztM0_level2_quad_clean.evt
Size (bytes)474,410,88095,083,200
Size452.4 MB 90.7 MB
Events in quadrant A5,870,344650,642
Events in quadrant B4,481,734645,150
Events in quadrant C2,584,701632,399
Events in quadrant D4,159,225532,089

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213761
B0174961
C0123571
D0169291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59911522.537139%
B59913345.575029%
C5992230.383845%
D59925599.329105%

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 7086 5992 39 39 0.55% 0.65%
B 7086 5992 145 145 2.05% 2.42%
C 7087 5993 14 14 0.20% 0.23%
D 7087 5993 508 508 7.17% 8.48%

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 3288677 24660.32 645 632 133.3
A 7 3 38404 283.29 645 632 133.3
A 13 248 27264 199.74 645 632 133.3
B 3 112 1562625 12633.1 635 616 123.6
B 5 173 138054 1111.56 635 616 123.6
B 5 172 74693 599.11 635 616 123.6
C 14 254 87233 589.22 627 630 147.0
C 0 207 24253 160.72 627 630 147.0
C 3 233 8385 52.76 627 630 147.0
D 1 52 1346717 8873.77 604 584 151.7
D 13 171 139634 916.62 604 584 151.7
D 1 47 121002 793.8 604 584 151.7

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