ASTROSAT CZTI

Data Quality Report

Orbit 38258

Creation date: 2024-06-27T21:50:23.568239
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/AS1A07_145T01_9000005370_38258cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38258cztM0_level2_quad_clean.evt
Size (bytes)398,064,96093,225,600
Size379.6 MB 88.9 MB
Events in quadrant A2,846,788635,818
Events in quadrant B3,080,315626,753
Events in quadrant C2,711,789632,859
Events in quadrant D5,704,608574,196

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115373
B0123472
C0109692
D0206232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5044140.277557%
B50442855.650278%
C5044220.436162%
D50441442.854877%

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 7046 5045 8 8 0.11% 0.16%
B 7046 5045 207 207 2.94% 4.10%
C 7046 5045 13 13 0.18% 0.26%
D 7046 5045 170 170 2.41% 3.37%

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 374477 3116.56 592 582 120.0
A 12 16 94699 784.5 592 582 120.0
A 12 189 38218 313.71 592 582 120.0
B 4 81 577393 5229.69 584 567 110.3
B 5 172 108296 976.71 584 567 110.3
B 0 229 52759 473.19 584 567 110.3
C 15 214 213432 1557.6 592 599 136.6
C 14 254 96994 705.46 592 599 136.6
C 15 208 43668 315.2 592 599 136.6
D 10 203 2003096 14220.87 582 567 140.8
D 12 235 1220214 8661.27 582 567 140.8
D 12 233 66093 465.33 582 567 140.8

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