ASTROSAT CZTI

Data Quality Report

Orbit 20240115_A13_017T02_9000006032_level2

Creation date: 2024-01-24T17:21:24.498879
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_9000006032cztM0_level2.fits modeM0/AS1A13_017T02_9000006032cztM0_level2_quad_clean.evt
Size (bytes)3,965,820,4803,713,918,400
Size3.7 GB 3.5 GB
Events in quadrant A23,886,88821,770,101
Events in quadrant B23,084,90822,077,009
Events in quadrant C24,300,29621,801,149
Events in quadrant D18,570,50016,612,220

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089660
B089660
C089660
D089660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013872960
B010478990
C09595900
D017922050

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05510
B05510
C05510
D05510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A441209126392.864629%
B441203145023.286922%
C44120651581.169068%
D4412018163618.503131%

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 501362 441205 0 0 0.00% 0.00%
B 501362 441173 0 0 0.00% 0.00%
C 501362 441197 0 0 0.00% 0.00%
D 501362 437858 0 0 0.00% 0.00%

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 7 110 19202 8.6 6222 5790 1560.2
A 15 236 19185 8.59 6222 5790 1560.2
A 0 29 18403 8.08 6222 5790 1560.2
B 2 9 21837 13.31 6116 5794 1205.3
B 2 8 17255 9.51 6116 5794 1205.3
B 3 17 16763 9.1 6116 5794 1205.3
C 3 202 18974 7.93 6445 6003 1635.5
C 1 81 18434 7.6 6445 6003 1635.5
C 3 203 18084 7.39 6445 6003 1635.5
D 10 189 13891 6.12 5361 4876 1472.9
D 15 47 13449 5.82 5361 4876 1472.9
D 6 79 13296 5.72 5361 4876 1472.9

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