ASTROSAT CZTI

Data Quality Report

Orbit 03333

Creation date: 2024-06-27T14:27:42.284185
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/AS1G05_246T01_9000000450_03333cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03333cztM0_level2_quad_clean.evt
Size (bytes)489,530,88073,287,360
Size466.9 MB 69.9 MB
Events in quadrant A3,313,573426,871
Events in quadrant B3,988,459438,746
Events in quadrant C3,538,560434,759
Events in quadrant D3,495,353416,858

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150111
B0164120
C0155650
D0158140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72012723.777253%
B72012433.374531%
C72011441.999722%
D72012393.318983%

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 7201 7201 1 1 0.01% 0.01%
B 7201 7201 0 0 0.00% 0.00%
C 7201 7201 14 14 0.19% 0.19%
D 7201 7201 43 43 0.60% 0.60%

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 13 14 22400 122.01 848 828 176.8
A 0 50 16908 90.95 848 828 176.8
A 0 226 9349 48.19 848 828 176.8
B 15 204 553156 3241.33 861 838 170.4
B 4 81 30477 173.94 861 838 170.4
B 0 229 27988 159.33 861 838 170.4
C 1 192 120270 610.13 829 832 195.8
C 9 144 41472 207.6 829 832 195.8
C 8 208 39786 198.99 829 832 195.8
D 13 223 181988 882.9 830 801 205.2
D 2 216 72708 350.39 830 801 205.2
D 9 85 29436 139.53 830 801 205.2

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