ASTROSAT CZTI

Data Quality Report

Orbit 42609

Creation date: 2024-06-27T22:42:09.951778
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_061T07_9000005818_42609cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42609cztM0_level2_quad_clean.evt
Size (bytes)376,303,68089,072,640
Size358.9 MB 84.9 MB
Events in quadrant A2,915,774597,520
Events in quadrant B2,671,321611,328
Events in quadrant C3,690,589592,212
Events in quadrant D4,217,933505,960

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117721
B0117511
C0144531
D0163341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A557490.161464%
B5575240.430493%
C5575530.950673%
D55754958.878924%

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 6977 5575 3 3 0.04% 0.05%
B 6978 5576 9 9 0.13% 0.16%
C 6978 5576 65 65 0.93% 1.17%
D 6978 5576 484 484 6.94% 8.68%

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 530480 4214.77 606 593 125.7
A 13 248 13854 105.48 606 593 125.7
A 2 79 11537 87.05 606 593 125.7
B 0 245 99450 844.62 602 586 117.1
B 5 172 49762 420.12 602 586 117.1
B 15 33 45268 381.73 602 586 117.1
C 3 233 1113170 8061.66 591 593 138.0
C 15 214 229313 1657.29 591 593 138.0
C 14 254 18118 126.99 591 593 138.0
D 1 52 1791571 12798.73 568 552 139.9
D 1 47 111499 792.83 568 552 139.9
D 2 234 29692 208.23 568 552 139.9

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