ASTROSAT CZTI

Data Quality Report

Orbit 14194

Creation date: 2024-06-27T16:51:41.932667
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/AS1C03_022T01_9000002098_14194cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14194cztM0_level2_quad_clean.evt
Size (bytes)495,751,68092,977,920
Size472.8 MB 88.7 MB
Events in quadrant A3,268,691603,425
Events in quadrant B4,002,330592,971
Events in quadrant C3,644,969580,261
Events in quadrant D3,640,035568,860

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142813
B0163712
C0151272
D0154602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6749220.325974%
B67491492.207734%
C6749190.281523%
D6749550.814936%

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 7720 6751 1 1 0.01% 0.01%
B 7720 6751 70 70 0.91% 1.04%
C 7720 6751 5 5 0.06% 0.07%
D 7720 6751 27 27 0.35% 0.40%

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 9 143 61442 363.66 815 798 166.8
A 12 189 36243 212.55 815 798 166.8
A 8 15 18706 107.39 815 798 166.8
B 10 245 578615 3708.86 807 786 155.8
B 0 219 69206 439.16 807 786 155.8
B 0 189 53318 337.18 807 786 155.8
C 3 233 593099 3255.24 781 788 182.0
C 13 61 5800 27.55 781 788 182.0
C 14 234 5108 23.74 781 788 182.0
D 1 52 184309 915.25 777 760 200.5
D 10 199 110885 549.13 777 760 200.5
D 10 172 74859 369.49 777 760 200.5

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