ASTROSAT CZTI

Data Quality Report

Orbit 11392

Creation date: 2024-06-27T16:12:16.649945
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/AS1A04_022T03_9000001664_11392cztM0_level2.evt modeM0/AS1A04_022T03_9000001664_11392cztM0_level2_quad_clean.evt
Size (bytes)490,040,64085,835,520
Size467.3 MB 81.9 MB
Events in quadrant A3,391,898545,588
Events in quadrant B4,063,047534,429
Events in quadrant C2,812,757586,816
Events in quadrant D4,180,193527,592

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138242
B0159162
C0120532
D0163952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57902073.575130%
B57903726.424870%
C5790530.915371%
D57902965.112263%

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 7050 5791 105 105 1.49% 1.81%
B 7050 5791 190 190 2.70% 3.28%
C 7050 5791 0 0 0.00% 0.00%
D 7050 5791 214 214 3.04% 3.70%

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 8 5 603550 4173.43 714 697 144.5
A 1 162 12463 81.45 714 697 144.5
A 1 178 7033 43.86 714 697 144.5
B 4 239 1115468 8435.35 706 688 132.2
B 11 51 108484 815.67 706 688 132.2
B 15 204 45575 339.65 706 688 132.2
C 13 61 5288 27.32 721 727 166.9
C 3 202 1804 6.45 721 727 166.9
C 3 203 1566 5.03 721 727 166.9
D 14 34 580633 3484.24 700 683 166.4
D 10 253 405228 2430.44 700 683 166.4
D 1 52 260663 1561.92 700 683 166.4

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