ASTROSAT CZTI

Data Quality Report

Orbit 44703

Creation date: 2024-06-27T23:05:39.494080
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/AS1A13_080T01_9000006012_44703cztM0_level2.fits modeM0/AS1A13_080T01_9000006012_44703cztM0_level2_quad_clean.evt
Size (bytes)511,585,92099,763,200
Size487.9 MB 95.1 MB
Events in quadrant A4,971,850677,100
Events in quadrant B4,470,367673,453
Events in quadrant C2,991,892653,701
Events in quadrant D6,019,495580,660

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197591
B0175261
C0134761
D0222721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62421171.874399%
B62423495.591157%
C6243610.977094%
D62433295.269902%

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 7297 6243 34 34 0.47% 0.54%
B 7297 6243 174 174 2.38% 2.79%
C 7298 6244 48 48 0.66% 0.77%
D 7298 6244 365 365 5.00% 5.85%

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 10 83 2148235 15080.12 683 670 142.4
A 13 248 108676 758.41 683 670 142.4
A 10 248 28953 198.6 683 670 142.4
B 0 189 587433 4470.25 674 655 131.3
B 15 36 322338 2450.68 674 655 131.3
B 4 171 142033 1077.06 674 655 131.3
C 12 2 136654 880.08 657 661 154.5
C 15 208 87329 560.87 657 661 154.5
C 2 14 74063 475.02 657 661 154.5
D 11 241 1901651 11508.67 646 624 165.2
D 13 249 310703 1877.19 646 624 165.2
D 13 171 308227 1862.2 646 624 165.2

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