ASTROSAT CZTI

Data Quality Report

Orbit 20230828_C06_010T01_9000005824_level2

Creation date: 2023-08-29T21:08:24.460184
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/AS1C06_010T01_9000005824cztM0_level2.fits modeM0/AS1C06_010T01_9000005824cztM0_level2_quad_clean.evt
Size (bytes)174,147,840239,103,360
Size166.1 MB 228.0 MB
Events in quadrant A1,040,7781,547,506
Events in quadrant B973,5161,475,790
Events in quadrant C1,024,9401,492,588
Events in quadrant D890,3481,381,517

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0433330
B0519100
C0454630
D0504680

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04020
B04020
C04020
D04020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19505630.322994%
B1950511976.136888%
C195051890.968982%
D195055222.676237%

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 28620 19506 0 0 0.00% 0.00%
B 28620 19439 0 0 0.00% 0.00%
C 28620 19505 0 0 0.00% 0.00%
D 28620 19497 0 0 0.00% 0.00%

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 9 19 894 8.98 272 256 71.1
A 7 110 840 8.22 272 256 71.1
A 0 29 805 7.73 272 256 71.1
B 2 9 824 11.09 258 247 52.0
B 3 80 710 8.9 258 247 52.0
B 5 128 689 8.49 258 247 52.0
C 1 81 897 9.11 271 255 70.5
C 1 80 829 8.14 271 255 70.5
C 1 65 786 7.53 271 255 70.5
D 10 189 691 6.67 253 232 68.8
D 6 38 686 6.6 253 232 68.8
D 3 14 663 6.27 253 232 68.8

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