ASTROSAT CZTI

Data Quality Report

Orbit 47014

Creation date: 2024-06-27T23:30:44.526632
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/AS1C09_006T01_9000006294_47014cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47014cztM0_level2_quad_clean.evt
Size (bytes)635,065,920104,207,040
Size605.6 MB 99.4 MB
Events in quadrant A6,617,922727,745
Events in quadrant B9,286,632549,946
Events in quadrant C3,180,111733,216
Events in quadrant D3,890,653665,701

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243370
B0323440
C0144980
D0166040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68722643.841676%
B6872224332.639697%
C6873620.902081%
D68732103.055434%

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 7417 6874 14 14 0.19% 0.20%
B 7417 6874 1819 1819 24.52% 26.46%
C 7418 6875 19 19 0.26% 0.28%
D 7418 6875 127 127 1.71% 1.85%

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 3474468 21599.62 772 756 160.8
A 9 191 55269 338.96 772 756 160.8
A 13 248 55103 337.93 772 756 160.8
B 3 112 6031018 43885.48 691 670 137.4
B 5 255 185814 1347.37 691 670 137.4
B 0 200 163896 1187.87 691 670 137.4
C 1 3 87913 478.58 770 773 182.1
C 14 254 68074 369.62 770 773 182.1
C 3 233 9850 49.85 770 773 182.1
D 13 249 489371 2550.82 766 744 191.6
D 12 233 126417 656.06 766 744 191.6
D 1 52 98573 510.7 766 744 191.6

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