ASTROSAT CZTI

Data Quality Report

Orbit 46565

Creation date: 2024-06-27T23:24:49.947399
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/AS1C03_005T02_9000006230_46565cztM0_level2.fits modeM0/AS1C03_005T02_9000006230_46565cztM0_level2_quad_clean.evt
Size (bytes)303,704,64063,941,760
Size289.6 MB 61.0 MB
Events in quadrant A3,513,457425,419
Events in quadrant B1,740,608435,879
Events in quadrant C1,631,475423,040
Events in quadrant D4,038,831364,691

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126640
B082550
C082010
D0148600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A407590.220859%
B407680.196271%
C407610.024534%
D40764049.911678%

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 4075 4075 3 3 0.07% 0.07%
B 4076 4076 3 3 0.07% 0.07%
C 4076 4076 3 3 0.07% 0.07%
D 4076 4076 363 363 8.91% 8.91%

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 1833153 20865.26 421 411 87.8
A 9 191 14351 158.7 421 411 87.8
A 15 235 13270 146.4 421 411 87.8
B 3 112 24196 287.95 416 404 82.6
B 0 245 22472 267.08 416 404 82.6
B 0 158 15723 185.4 416 404 82.6
C 14 254 19805 200.21 410 412 96.9
C 12 250 6248 60.25 410 412 96.9
C 13 61 2687 23.49 410 412 96.9
D 1 52 966389 9520.96 398 384 101.5
D 13 249 655175 6453.63 398 384 101.5
D 8 176 286476 2819.73 398 384 101.5

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