ASTROSAT CZTI

Data Quality Report

Orbit 08013

Creation date: 2024-06-27T15:26:49.089363
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/AS1G06_154T01_9000001100_08013cztM0_level2.evt modeM0/AS1G06_154T01_9000001100_08013cztM0_level2_quad_clean.evt
Size (bytes)452,822,40076,806,720
Size431.8 MB 73.2 MB
Events in quadrant A3,272,196458,874
Events in quadrant B3,322,204467,248
Events in quadrant C3,256,840462,534
Events in quadrant D3,388,765451,982

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143443
B0143642
C0143272
D0148932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69631381.981904%
B69631271.823926%
C69631121.608502%
D69631321.895735%

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 8608 6964 3 3 0.03% 0.04%
B 8608 6964 0 0 0.00% 0.00%
C 8608 6964 0 0 0.00% 0.00%
D 8608 6965 15 15 0.17% 0.22%

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 15 234 9415 49.45 847 824 173.7
A 0 226 8065 41.68 847 824 173.7
A 12 194 7229 36.87 847 824 173.7
B 12 111 19056 110.25 848 828 165.3
B 11 111 15610 89.41 848 828 165.3
B 11 51 14982 85.61 848 828 165.3
C 1 16 30922 155.58 826 829 193.4
C 13 61 6184 27.68 826 829 193.4
C 8 222 2635 9.34 826 829 193.4
D 1 52 126492 630.66 825 803 199.3
D 2 136 52971 261.76 825 803 199.3
D 2 14 49557 244.63 825 803 199.3

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