ASTROSAT CZTI

Data Quality Report

Orbit 03211

Creation date: 2024-06-27T14:26:16.862825
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_9000000438_03211cztM0_level2.evt modeM0/AS1G05_233T10_9000000438_03211cztM0_level2_quad_clean.evt
Size (bytes)807,557,76081,938,880
Size770.1 MB 78.1 MB
Events in quadrant A3,069,857560,605
Events in quadrant B3,832,686564,720
Events in quadrant C13,583,378365,417
Events in quadrant D3,522,481525,991

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138053
B0157602
C0448992
D0151832

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6637200.301341%
B6637530.798554%
C6637380957.390387%
D6637951.431370%

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 7812 6638 2 2 0.03% 0.03%
B 7812 6637 7 7 0.09% 0.11%
C 7812 6637 3899 3899 49.91% 58.75%
D 7812 6638 87 87 1.11% 1.31%

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 8 15 116297 754.79 755 740 153.1
A 0 118 31157 198.68 755 740 153.1
A 0 226 10786 65.62 755 740 153.1
B 15 204 701840 4765.36 777 758 147.1
B 2 249 38414 255.95 777 758 147.1
B 0 229 26644 175.95 777 758 147.1
C 12 206 10467016 79063.82 568 571 132.4
C 1 192 846548 6390.53 568 571 132.4
C 2 53 16506 120.37 568 571 132.4
D 13 223 228842 1300.07 725 702 175.5
D 12 16 217668 1236.4 725 702 175.5
D 13 120 157937 896.01 725 702 175.5

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
Veto Counter