ASTROSAT CZTI

Data Quality Report

Orbit 20743

Creation date: 2024-06-27T18:19:04.136771
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_063T03_9000003066_20743cztM0_level2.evt modeM0/AS1A05_063T03_9000003066_20743cztM0_level2_quad_clean.evt
Size (bytes)537,442,560109,932,480
Size512.5 MB 104.8 MB
Events in quadrant A3,064,144766,825
Events in quadrant B3,458,301747,552
Events in quadrant C3,051,747719,971
Events in quadrant D6,302,213682,546

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125401
B0139741
C0124621
D0226091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59021091.846832%
B59031893.201762%
C59031212.049805%
D590396716.381501%

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 7167 5903 0 0 0.00% 0.00%
B 7168 5905 39 39 0.54% 0.66%
C 7168 5905 0 0 0.00% 0.00%
D 7168 5905 843 843 11.76% 14.28%

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 0 226 7038 39.57 795 780 158.2
A 3 137 5982 32.89 795 780 158.2
A 12 194 5733 31.32 795 780 158.2
B 7 220 330187 2283.45 772 755 144.3
B 0 197 33929 229.94 772 755 144.3
B 0 229 22102 147.97 772 755 144.3
C 14 238 117641 675.79 750 756 173.0
C 3 233 6338 32.27 750 756 173.0
C 7 247 5439 27.08 750 756 173.0
D 1 52 2610493 14545.16 744 726 179.4
D 1 20 647323 3603.72 744 726 179.4
D 2 165 180060 999.49 744 726 179.4

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