ASTROSAT CZTI

Data Quality Report

Orbit 08133

Creation date: 2024-06-27T15:28:26.178859
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/AS1A02_178T01_9000001118_08133cztM0_level2.evt modeM0/AS1A02_178T01_9000001118_08133cztM0_level2_quad_clean.evt
Size (bytes)604,114,56083,056,320
Size576.1 MB 79.2 MB
Events in quadrant A7,482,944465,895
Events in quadrant B3,427,422548,585
Events in quadrant C3,260,822532,905
Events in quadrant D3,680,796511,018

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267103
B0144792
C0140102
D0154282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6539176526.991895%
B6539841.284600%
C6539430.657593%
D65391452.217464%

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 7813 6539 1594 1594 20.40% 24.38%
B 7814 6540 24 24 0.31% 0.37%
C 7814 6540 0 0 0.00% 0.00%
D 7814 6540 97 97 1.24% 1.48%

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 13 170 4780025 34226.34 693 680 139.6
A 14 111 17724 122.06 693 680 139.6
A 8 15 12751 86.44 693 680 139.6
B 10 16 72421 450.9 845 827 158.8
B 0 214 63995 397.83 845 827 158.8
B 12 111 16636 99.57 845 827 158.8
C 1 16 88882 473.03 809 814 186.2
C 13 61 6138 28.6 809 814 186.2
C 8 128 5870 27.16 809 814 186.2
D 1 52 262335 1235.25 793 777 211.7
D 12 233 191426 900.37 793 777 211.7
D 13 122 68639 320.49 793 777 211.7

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