ASTROSAT CZTI

Data Quality Report

Orbit 38147

Creation date: 2024-06-27T21:48:59.400768
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_093T02_9000005368_38147cztM0_level2.fits modeM0/AS1A07_093T02_9000005368_38147cztM0_level2_quad_clean.evt
Size (bytes)318,248,64093,873,600
Size303.5 MB 89.5 MB
Events in quadrant A2,835,393633,769
Events in quadrant B2,557,107642,790
Events in quadrant C2,669,975615,937
Events in quadrant D3,284,132560,232

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117533
B0114812
C0113122
D0135862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A556990.161609%
B5569220.395044%
C556930.053870%
D5569821.472437%

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 7152 5570 4 4 0.06% 0.07%
B 7152 5570 9 9 0.13% 0.16%
C 7152 5570 4 4 0.06% 0.07%
D 7152 5570 81 81 1.13% 1.45%

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 382649 3059.45 611 597 124.9
A 12 16 40806 321.99 611 597 124.9
A 12 189 30151 236.67 611 597 124.9
B 4 171 51886 437.64 606 590 117.2
B 0 229 42571 358.17 606 590 117.2
B 0 186 32928 275.9 606 590 117.2
C 15 214 235101 1707.48 593 595 137.3
C 3 233 79190 572.26 593 595 137.3
C 0 10 20226 142.94 593 595 137.3
D 1 47 185909 1307.4 588 572 141.8
D 13 249 181451 1275.95 588 572 141.8
D 7 223 134575 945.28 588 572 141.8

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