ASTROSAT CZTI

Data Quality Report

Orbit 10846

Creation date: 2024-06-27T16:04:29.166633
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/AS1A03_086T01_9000001568_10846cztM0_level2.evt modeM0/AS1A03_086T01_9000001568_10846cztM0_level2_quad_clean.evt
Size (bytes)600,379,200103,317,120
Size572.6 MB 98.5 MB
Events in quadrant A4,880,187660,011
Events in quadrant B5,002,405664,630
Events in quadrant C3,951,196669,666
Events in quadrant D3,867,668640,393

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01462
B01462
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019377213
B019736235
C016574186
D016618153

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70954205.919662%
B70854916.930134%
C70871512.130662%
D70971211.704946%

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 7377 7158 225 225 3.05% 3.14%
B 7377 7154 221 221 3.00% 3.09%
C 7377 7159 87 87 1.18% 1.22%
D 7377 7161 55 55 0.75% 0.77%

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 1265668 7298.59 842 826 173.3
A 15 223 183947 1056.67 842 826 173.3
A 13 251 87314 499.07 842 826 173.3
B 4 239 1515539 9172.45 850 831 165.1
B 0 219 68889 412.13 850 831 165.1
B 0 214 31143 183.56 850 831 165.1
C 4 254 667797 3399.36 835 843 196.2
C 8 128 9809 45.7 835 843 196.2
C 4 238 6829 30.51 835 843 196.2
D 2 14 162504 799.59 828 807 202.2
D 13 104 143311 704.68 828 807 202.2
D 7 71 123924 608.81 828 807 202.2

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