ASTROSAT CZTI

Data Quality Report

Orbit 34482

Creation date: 2024-06-27T21:01:06.849310
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/AS1A10_071T14_9000004924_34482cztM0_level2.evt modeM0/AS1A10_071T14_9000004924_34482cztM0_level2_quad_clean.evt
Size (bytes)419,618,88085,878,720
Size400.2 MB 81.9 MB
Events in quadrant A2,815,161561,174
Events in quadrant B3,096,979573,988
Events in quadrant C2,780,384573,220
Events in quadrant D3,675,546541,223

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115294
B0122032
C0111182
D0145172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5008911.817093%
B50082725.431310%
C5008460.918530%
D50081082.156550%

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 7102 5010 54 54 0.76% 1.08%
B 7102 5010 220 220 3.10% 4.39%
C 7102 5010 34 34 0.48% 0.68%
D 7102 5010 72 72 1.01% 1.44%

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 15 169 369995 2961.91 615 604 124.7
A 10 83 38655 305.11 615 604 124.7
A 9 143 14762 113.52 615 604 124.7
B 5 172 649942 5648.39 599 585 115.0
B 4 232 24948 211.92 599 585 115.0
B 0 189 22827 193.47 599 585 115.0
C 15 214 212160 1512.45 608 615 139.9
C 0 10 153837 1095.47 608 615 139.9
C 14 67 27938 195.35 608 615 139.9
D 8 195 627276 4239.75 603 587 147.8
D 2 250 137008 922.93 603 587 147.8
D 10 118 133098 896.48 603 587 147.8

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