ASTROSAT CZTI

Data Quality Report

Orbit 19713

Creation date: 2024-06-27T18:05:53.531198
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/AS1A05_013T01_9000002944_19713cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19713cztM0_level2_quad_clean.evt
Size (bytes)436,864,32094,006,080
Size416.6 MB 89.7 MB
Events in quadrant A3,034,056616,048
Events in quadrant B3,284,456637,303
Events in quadrant C3,196,058597,581
Events in quadrant D3,302,766571,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128402
B0135782
C0131722
D0137572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6078140.230339%
B6078430.707470%
C6078560.921356%
D6078420.691017%

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 7418 6079 0 0 0.00% 0.00%
B 7418 6079 14 14 0.19% 0.23%
C 7418 6079 2 2 0.03% 0.03%
D 7418 6079 30 30 0.40% 0.49%

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 11 29 21083 129.64 782 767 156.7
A 0 226 6752 38.19 782 767 156.7
A 13 254 6047 33.69 782 767 156.7
B 0 197 55084 369.05 791 774 147.2
B 0 182 49164 328.83 791 774 147.2
B 4 171 30729 203.55 791 774 147.2
C 14 238 121841 697.28 754 759 173.6
C 3 233 100987 577.19 754 759 173.6
C 7 247 15704 86.06 754 759 173.6
D 12 218 98309 535.68 751 731 182.2
D 1 52 96142 523.79 751 731 182.2
D 12 225 83407 453.88 751 731 182.2

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