ASTROSAT CZTI

Data Quality Report

Orbit 38592

Creation date: 2024-06-27T21:53:50.077081
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/AS1A12_052T04_9000005388_38592cztM0_level2.fits modeM0/AS1A12_052T04_9000005388_38592cztM0_level2_quad_clean.evt
Size (bytes)463,812,48096,773,760
Size442.3 MB 92.3 MB
Events in quadrant A2,882,112691,547
Events in quadrant B3,983,884674,601
Events in quadrant C4,447,366652,083
Events in quadrant D5,473,658567,148

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114723
B0150522
C0165602
D0196972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4923220.446882%
B49233637.373553%
C49232735.545399%
D492365913.386147%

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 7016 4924 13 13 0.19% 0.26%
B 7016 4924 280 280 3.99% 5.69%
C 7016 4924 233 233 3.32% 4.73%
D 7016 4924 719 719 10.25% 14.60%

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 400277 3168.65 631 621 126.1
A 13 248 38123 297.33 631 621 126.1
A 13 254 7928 57.93 631 621 126.1
B 5 184 1265757 11169.65 612 600 113.3
B 5 172 78228 685.35 612 600 113.3
B 15 32 63028 551.16 612 600 113.3
C 14 254 1699717 12392.16 602 606 137.1
C 15 214 201834 1467.62 602 606 137.1
C 1 23 111087 805.77 602 606 137.1
D 1 47 1905421 13403.48 588 574 142.1
D 1 20 293982 2064.57 588 574 142.1
D 5 222 213151 1495.8 588 574 142.1

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