ASTROSAT CZTI

Data Quality Report

Orbit 04549

Creation date: 2024-06-27T14:43:41.187982
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_233T10_9000000570_04549cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04549cztM0_level2_quad_clean.evt
Size (bytes)701,363,52087,088,320
Size668.9 MB 83.1 MB
Events in quadrant A7,770,275467,426
Events in quadrant B3,780,170565,903
Events in quadrant C4,266,777557,323
Events in quadrant D4,926,167534,293

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281022
B0160021
C0178091
D0199781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7348195626.619488%
B73481121.524224%
C73481472.000544%
D73483875.266739%

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 7433 7348 657 657 8.84% 8.94%
B 7433 7349 16 16 0.22% 0.22%
C 7433 7349 82 82 1.10% 1.12%
D 7433 7348 178 178 2.39% 2.42%

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 0 13 4677912 30166.57 749 730 155.0
A 15 234 75206 480.35 749 730 155.0
A 0 118 66858 426.51 749 730 155.0
B 15 204 124795 757.86 853 829 163.6
B 15 54 89126 539.8 853 829 163.6
B 10 16 77661 469.71 853 829 163.6
C 14 48 877737 4600.71 819 822 190.6
C 9 247 165677 864.91 819 822 190.6
C 9 54 8657 41.11 819 822 190.6
D 9 35 1048922 5250.17 816 790 199.6
D 13 106 208880 1042.34 816 790 199.6
D 1 20 193838 966.99 816 790 199.6

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