ASTROSAT CZTI

Data Quality Report

Orbit 20230611_T05_116T01_9000005682_level2

Creation date: 2023-06-14T14:26:12.959678
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/AS1T05_116T01_9000005682cztM0_level2.fits modeM0/AS1T05_116T01_9000005682cztM0_level2_quad_clean.evt
Size (bytes)852,883,200953,812,800
Size813.4 MB 909.6 MB
Events in quadrant A5,143,4205,945,931
Events in quadrant B4,924,0745,859,732
Events in quadrant C4,954,9365,556,545
Events in quadrant D4,258,1284,980,971

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02065170
B02084830
C02190300
D02793010

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03920
B03930
C03930
D03930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019540
B019540
C019540
D019540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A954792740.286974%
B9547912721.332230%
C9548035403.707583%
D9548071537.491621%

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 159875 95481 0 0 0.00% 0.00%
B 159875 95476 0 0 0.00% 0.00%
C 159875 94794 0 0 0.00% 0.00%
D 159875 95367 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 4246 8.96 1345 1261 333.0
A 0 29 4224 8.9 1345 1261 333.0
A 9 19 4195 8.81 1345 1261 333.0
B 2 9 4179 11.68 1302 1241 251.6
B 3 80 3540 9.14 1302 1241 251.6
B 3 17 3449 8.78 1302 1241 251.6
C 3 202 4110 8.65 1307 1223 333.8
C 1 81 4012 8.35 1307 1223 333.8
C 3 203 3945 8.15 1307 1223 333.8
D 7 3 3179 6.38 1219 1115 323.4
D 4 160 3160 6.32 1219 1115 323.4
D 10 189 3133 6.24 1219 1115 323.4

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