ASTROSAT CZTI

Data Quality Report

Orbit 41067

Creation date: 2024-06-27T22:24:00.776837
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/AS1A12_093T02_9000005594_41067cztM0_level2.fits modeM0/AS1A12_093T02_9000005594_41067cztM0_level2_quad_clean.evt
Size (bytes)340,894,08093,162,240
Size325.1 MB 88.8 MB
Events in quadrant A3,102,606636,327
Events in quadrant B2,468,129661,187
Events in quadrant C2,752,538612,728
Events in quadrant D3,890,374546,563

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123863
B0105292
C0111442
D0149762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5202480.922722%
B520270.134564%
C5202300.576701%
D52022825.420992%

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 7086 5203 23 23 0.32% 0.44%
B 7086 5203 0 0 0.00% 0.00%
C 7086 5203 14 14 0.20% 0.27%
D 7086 5203 234 234 3.30% 4.50%

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 480453 3752.73 624 612 127.9
A 12 189 108131 840.88 624 612 127.9
A 13 248 94790 736.55 624 612 127.9
B 0 229 20417 164.78 618 602 120.3
B 15 32 17292 138.79 618 602 120.3
B 12 111 15258 121.88 618 602 120.3
C 15 214 224670 1595.28 602 605 140.5
C 14 254 129470 917.48 602 605 140.5
C 0 10 48929 344.05 602 605 140.5
D 2 249 928703 6410.96 591 575 144.8
D 2 16 323007 2227.17 591 575 144.8
D 12 79 284636 1962.13 591 575 144.8

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