ASTROSAT CZTI

Data Quality Report

Orbit 32124

Creation date: 2024-06-27T20:36:45.135147
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/AS1T04_051T01_9000004686_32124cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32124cztM0_level2_quad_clean.evt
Size (bytes)469,105,92070,479,360
Size447.4 MB 67.2 MB
Events in quadrant A2,564,944460,655
Events in quadrant B4,587,862435,610
Events in quadrant C2,705,238451,886
Events in quadrant D3,999,814425,470

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011639794
B0189481727
C012096891
D0168891310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011612
B011612
C011715
D011616

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51871683.238866%
B51014388.586552%
C51792244.325159%
D51322234.345284%

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 5859 5287 0 0 0.00% 0.00%
B 5856 5204 132 132 2.25% 2.54%
C 5857 5263 9 9 0.15% 0.17%
D 5855 5233 66 66 1.13% 1.26%

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 13 6 14098 100.7 659 644 133.6
A 13 254 10211 71.61 659 644 133.6
A 15 174 8430 58.28 659 644 133.6
B 6 159 1378449 11418.85 627 610 120.7
B 10 245 443557 3670.93 627 610 120.7
B 5 172 133173 1098.62 627 610 120.7
C 14 238 107972 736.69 627 632 145.7
C 0 10 104162 710.54 627 632 145.7
C 2 114 12150 79.05 627 632 145.7
D 8 195 1273481 8554.16 627 609 148.8
D 12 233 247653 1660.22 627 609 148.8
D 10 199 35126 231.97 627 609 148.8

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