ASTROSAT CZTI

Data Quality Report

Orbit 32715

Creation date: 2024-06-27T20:41:10.005210
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/AS1A10_123T04_9000004726_32715cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32715cztM0_level2_quad_clean.evt
Size (bytes)479,712,96064,719,360
Size457.5 MB 61.7 MB
Events in quadrant A4,591,154398,282
Events in quadrant B3,340,651420,383
Events in quadrant C2,421,008411,490
Events in quadrant D3,839,443381,861

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168123
B0129612
C0102442
D0147302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A495150210.139366%
B49511994.019390%
C4951130.262573%
D49512304.645526%

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 7074 4952 345 345 4.88% 6.97%
B 7074 4952 153 153 2.16% 3.09%
C 7074 4952 8 8 0.11% 0.16%
D 7074 4952 194 194 2.74% 3.92%

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 15 249 2196179 18546.02 597 588 118.4
A 15 237 49422 412.5 597 588 118.4
A 7 16 20668 169.61 597 588 118.4
B 4 251 792024 7025.32 604 592 112.7
B 0 197 49537 434.47 604 592 112.7
B 3 26 40086 350.58 604 592 112.7
C 9 236 58201 428.67 588 593 134.4
C 0 10 26908 195.81 588 593 134.4
C 3 233 15439 110.47 588 593 134.4
D 2 250 446711 3205.56 582 570 139.2
D 2 249 304025 2180.35 582 570 139.2
D 8 195 226953 1626.58 582 570 139.2

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