ASTROSAT CZTI

Data Quality Report

Orbit 01393

Creation date: 2024-06-27T14:12:01.269711
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/AS1G04_014T02_9000000232_01393cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01393cztM0_level2_quad_clean.evt
Size (bytes)1,367,838,720108,204,480
Size1.3 GB 103.2 MB
Events in quadrant A14,212,442644,715
Events in quadrant B10,057,639717,872
Events in quadrant C8,686,550705,957
Events in quadrant D7,977,793690,265

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0476163
B0351572
C0310992
D0290122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7433128417.274317%
B7433951.278084%
C743380.107628%
D7433230.309431%

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 7633 7433 2879 2879 37.72% 38.73%
B 7633 7435 657 657 8.61% 8.84%
C 7633 7435 312 312 4.09% 4.20%
D 7633 7435 254 254 3.33% 3.42%

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 15 127 4727979 9100.43 2158 2169 519.3
A 4 32 1165457 2240.13 2158 2169 519.3
A 13 17 29340 52.32 2158 2169 519.3
B 8 4 505342 874.99 2406 2421 574.8
B 6 53 176970 303.68 2406 2421 574.8
B 12 52 118616 202.16 2406 2421 574.8
C 15 241 260040 430.88 2139 2213 598.4
C 3 111 26785 41.06 2139 2213 598.4
C 7 220 26351 40.34 2139 2213 598.4
D 13 205 104048 157.45 2064 2139 647.2
D 9 53 98291 148.56 2064 2139 647.2
D 5 82 18726 25.63 2064 2139 647.2

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