ASTROSAT CZTI

Data Quality Report

Orbit 27076

Creation date: 2024-06-27T19:36:10.514675
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/AS1A09_120T02_9000003904_27076cztM0_level2.evt modeM0/AS1A09_120T02_9000003904_27076cztM0_level2_quad_clean.evt
Size (bytes)257,616,00033,779,520
Size245.7 MB 32.2 MB
Events in quadrant A1,731,942192,832
Events in quadrant B1,767,559198,058
Events in quadrant C1,691,015190,998
Events in quadrant D2,362,193182,491

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074350
B075350
C073150
D093850

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A363830.082463%
B3639150.412201%
C3639170.467161%
D3639320.879362%

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 3638 3638 0 0 0.00% 0.00%
B 3639 3639 12 12 0.33% 0.33%
C 3639 3639 0 0 0.00% 0.00%
D 3639 3639 30 30 0.82% 0.82%

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 14 235 45419 507.77 433 424 88.6
A 6 16 11609 126.22 433 424 88.6
A 5 203 5933 62.17 433 424 88.6
B 0 189 71001 838.54 428 419 84.2
B 12 111 9682 110.05 428 419 84.2
B 11 111 8939 101.22 428 419 84.2
C 14 238 67655 677.99 415 418 99.2
C 13 61 2959 25.62 415 418 99.2
C 15 208 2804 24.05 415 418 99.2
D 1 52 652138 6434.19 418 407 101.3
D 2 250 71645 703.29 418 407 101.3
D 13 85 40775 398.53 418 407 101.3

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