ASTROSAT CZTI

Data Quality Report

Orbit 38014

Creation date: 2024-06-27T21:47:19.700043
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/AS1A11_082T01_9000005356_38014cztM0_level2.fits modeM0/AS1A11_082T01_9000005356_38014cztM0_level2_quad_clean.evt
Size (bytes)341,913,60095,598,720
Size326.1 MB 91.2 MB
Events in quadrant A2,775,420645,377
Events in quadrant B2,986,721660,702
Events in quadrant C2,627,027657,181
Events in quadrant D3,884,323586,797

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110243
B0117822
C0105062
D0148862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4921130.264174%
B49211462.966877%
C492190.182890%
D49211392.824629%

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 7075 4922 5 5 0.07% 0.10%
B 7075 4922 103 103 1.46% 2.09%
C 7075 4922 5 5 0.07% 0.10%
D 7075 4922 109 109 1.54% 2.21%

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 350880 2861.17 608 597 122.4
A 0 247 30562 244.76 608 597 122.4
A 13 6 13112 102.22 608 597 122.4
B 0 229 290339 2562.15 600 585 113.1
B 5 255 216738 1911.33 600 585 113.1
B 4 171 40674 354.48 600 585 113.1
C 15 214 211218 1536.65 597 604 137.1
C 14 254 51095 368.39 597 604 137.1
C 0 10 13717 95.67 597 604 137.1
D 1 52 911038 6382.25 592 577 142.7
D 13 171 138362 965.86 592 577 142.7
D 7 223 133386 930.98 592 577 142.7

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