ASTROSAT CZTI

Data Quality Report

Orbit 38088

Creation date: 2024-06-27T21:48:15.318004
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/AS1A11_047T09_9000005362_38088cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38088cztM0_level2_quad_clean.evt
Size (bytes)349,384,32091,203,840
Size333.2 MB 87.0 MB
Events in quadrant A2,949,604621,611
Events in quadrant B2,828,334628,813
Events in quadrant C2,838,265601,964
Events in quadrant D3,907,692541,342

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119212
B0118901
C0115641
D0152741

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5257260.494579%
B52571021.940270%
C5257200.380445%
D52572975.649610%

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 7199 5258 19 19 0.26% 0.36%
B 7199 5258 70 70 0.97% 1.33%
C 7199 5258 18 18 0.25% 0.34%
D 7199 5258 240 240 3.33% 4.56%

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 333974 2703.42 612 601 123.3
A 9 143 67972 546.33 612 601 123.3
A 12 16 53581 429.63 612 601 123.3
B 0 229 159224 1361.69 602 586 116.5
B 15 85 140161 1198.06 602 586 116.5
B 5 172 91850 783.38 602 586 116.5
C 1 23 223794 1624.27 591 595 137.4
C 15 214 219407 1592.34 591 595 137.4
C 5 250 39059 279.91 591 595 137.4
D 5 222 1319272 9132.39 584 568 144.4
D 13 249 124646 859.27 584 568 144.4
D 7 223 54406 372.84 584 568 144.4

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