ASTROSAT CZTI

Data Quality Report

Orbit 44893

Creation date: 2024-06-27T23:07:42.970323
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/AS1A13_017T02_9000006032_44893cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44893cztM0_level2_quad_clean.evt
Size (bytes)567,547,200113,336,640
Size541.3 MB 108.1 MB
Events in quadrant A5,416,719776,930
Events in quadrant B3,772,228802,022
Events in quadrant C3,174,305781,068
Events in quadrant D8,153,805628,507

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205702
B0152242
C0134842
D0286712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63521832.880982%
B63521953.069899%
C6352570.897355%
D6352101615.994962%

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 7567 6353 11 11 0.15% 0.17%
B 7567 6353 87 87 1.15% 1.37%
C 7567 6353 12 12 0.16% 0.19%
D 7567 6353 839 839 11.09% 13.21%

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 2272284 14077.55 784 771 161.4
A 13 248 68156 417.61 784 771 161.4
A 7 3 23284 139.52 784 771 161.4
B 5 255 171106 1127.58 777 754 151.1
B 0 190 155767 1026.04 777 754 151.1
B 5 172 137136 902.72 777 754 151.1
C 12 2 51999 281.3 777 783 182.1
C 14 254 43266 233.33 777 783 182.1
C 2 14 25958 138.27 777 783 182.1
D 13 174 1334266 7241.29 737 718 184.2
D 13 187 892863 4844.43 737 718 184.2
D 1 47 738486 4006.15 737 718 184.2

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