ASTROSAT CZTI

Data Quality Report

Orbit 09036

Creation date: 2024-06-27T15:40:21.260509
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_029T02_9000001256_09036cztM0_level2.evt modeM0/AS1G07_029T02_9000001256_09036cztM0_level2_quad_clean.evt
Size (bytes)671,480,64096,500,160
Size640.4 MB 92.0 MB
Events in quadrant A7,941,273588,556
Events in quadrant B3,580,328628,421
Events in quadrant C3,333,742615,902
Events in quadrant D4,987,486581,586

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0287642
B0155541
C0151751
D0197611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A727999413.655722%
B72791952.678939%
C7279861.181481%
D72794045.550213%

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 7329 7280 470 470 6.41% 6.46%
B 7329 7280 4 4 0.05% 0.05%
C 7329 7280 0 0 0.00% 0.00%
D 7329 7280 169 169 2.31% 2.32%

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 4325919 24794.07 849 829 174.4
A 5 16 210398 1201.38 849 829 174.4
A 1 162 57845 326.85 849 829 174.4
B 6 51 43389 249.37 878 856 170.6
B 0 214 26319 149.29 878 856 170.6
B 10 16 23100 130.42 878 856 170.6
C 13 61 6532 28.42 853 855 199.7
C 8 128 4251 17.0 853 855 199.7
C 8 112 2657 9.02 853 855 199.7
D 6 225 1410475 6368.98 844 821 221.3
D 2 14 107147 480.39 844 821 221.3
D 1 52 66208 295.43 844 821 221.3

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