ASTROSAT CZTI

Data Quality Report

Orbit 03201

Creation date: 2024-06-27T14:26:11.738601
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/AS1G05_233T10_9000000438_03201cztM0_level2.evt modeM0/AS1G05_233T10_9000000438_03201cztM0_level2_quad_clean.evt
Size (bytes)778,032,00061,911,360
Size742.0 MB 59.0 MB
Events in quadrant A3,062,140374,019
Events in quadrant B3,305,329374,353
Events in quadrant C13,281,542301,247
Events in quadrant D3,463,231359,683

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137872
B0139901
C0440261
D0151441

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6666941.410141%
B66661051.575158%
C6666374856.225623%
D66661942.910291%

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 7556 6666 1 1 0.01% 0.02%
B 7556 6666 6 6 0.08% 0.09%
C 7555 6665 3655 3655 48.38% 54.84%
D 7556 6666 87 87 1.15% 1.31%

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 8 15 48076 304.61 763 745 155.4
A 13 14 20646 128.08 763 745 155.4
A 0 199 13784 83.92 763 745 155.4
B 15 204 118212 792.86 777 757 148.1
B 4 80 49553 329.39 777 757 148.1
B 3 0 44809 297.37 777 757 148.1
C 12 206 11116949 90647.64 534 536 122.6
C 1 192 43870 353.36 534 536 122.6
C 6 80 21324 169.51 534 536 122.6
D 13 223 349405 1962.38 735 712 177.7
D 5 233 106793 597.0 735 712 177.7
D 13 120 81829 456.51 735 712 177.7

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
Veto Counter