ASTROSAT CZTI

Data Quality Report

Orbit 20240210_A13_024T03_9000006064_level2

Creation date: 2024-02-13T16:38:40.570571
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_024T03_9000006064cztM0_level2.fits modeM0/AS1A13_024T03_9000006064cztM0_level2_quad_clean.evt
Size (bytes)1,519,992,0001,629,259,200
Size1.4 GB 1.5 GB
Events in quadrant A8,988,5249,714,026
Events in quadrant B8,771,88610,056,146
Events in quadrant C9,092,6969,606,607
Events in quadrant D7,398,8528,198,272

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05511850
B03838170
C03805210
D05426770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034780
B034780
C034780
D034780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01930
B01930
C01930
D01930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17180757343.337466%
B17180942552.476587%
C17180932311.880577%
D171806159409.277906%

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 191044 171773 0 0 0.00% 0.00%
B 191043 171688 0 0 0.00% 0.00%
C 191044 171644 0 0 0.00% 0.00%
D 191043 171420 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 7406 8.72 2339 2178 599.2
A 15 236 7171 8.33 2339 2178 599.2
A 0 29 6982 8.02 2339 2178 599.2
B 2 9 8296 13.58 2320 2204 448.5
B 2 8 6737 10.11 2320 2204 448.5
B 3 17 6317 9.17 2320 2204 448.5
C 3 202 7115 7.92 2407 2239 615.5
C 1 81 6963 7.67 2407 2239 615.5
C 1 80 6907 7.58 2407 2239 615.5
D 12 6 5424 5.9 2131 1932 591.8
D 10 189 5409 5.87 2131 1932 591.8
D 3 14 5363 5.8 2131 1932 591.8

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