ASTROSAT CZTI

Data Quality Report

Orbit 09384

Creation date: 2024-06-27T15:45:22.547855
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/AS1G07_069T01_9000001332_09384cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09384cztM0_level2_quad_clean.evt
Size (bytes)109,722,24021,136,320
Size104.6 MB 20.2 MB
Events in quadrant A873,490125,235
Events in quadrant B803,881128,796
Events in quadrant C752,902134,155
Events in quadrant D776,424128,936

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04133436
B03894328
C03826308
D03925354

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0382
C0384
D0384

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C021
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1647824.978749%
B1668935.575540%
C1673442.630006%
D1661392.347983%

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 2055 1764 0 0 0.00% 0.00%
B 2056 1779 0 0 0.00% 0.00%
C 2056 1771 0 0 0.00% 0.00%
D 2056 1776 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 8 5 118134 2914.45 188 183 40.5
A 1 162 14004 341.5 188 183 40.5
A 1 178 4724 112.2 188 183 40.5
B 0 219 35443 873.86 197 191 40.3
B 12 111 4521 107.33 197 191 40.3
B 11 111 3465 81.15 197 191 40.3
C 13 61 1453 26.92 192 192 46.8
C 8 222 1022 17.72 192 192 46.8
C 14 234 938 15.93 192 192 46.8
D 1 52 19038 380.02 185 180 49.6
D 13 137 17619 351.43 185 180 49.6
D 8 195 11658 231.3 185 180 49.6

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