ASTROSAT CZTI

Data Quality Report

Orbit 33567

Creation date: 2024-06-27T20:50:13.868384
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/AS1A11_060T01_9000004808_33567cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33567cztM0_level2_quad_clean.evt
Size (bytes)560,563,20069,684,480
Size534.6 MB 66.5 MB
Events in quadrant A2,778,178457,509
Events in quadrant B3,922,169451,835
Events in quadrant C5,997,213417,506
Events in quadrant D3,928,173419,182

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112273
B0147822
C0214872
D0151052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5190100.192678%
B51904859.344894%
C519052710.154143%
D51901522.928709%

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 7193 5191 5 5 0.07% 0.10%
B 7193 5191 434 434 6.03% 8.36%
C 7193 5191 550 550 7.65% 10.60%
D 7193 5191 124 124 1.72% 2.39%

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 15 169 240658 1867.0 652 641 128.6
A 13 254 8585 61.79 652 641 128.6
A 9 254 7544 53.7 652 641 128.6
B 5 172 1274630 10811.22 632 617 117.8
B 4 170 36691 306.12 632 617 117.8
B 4 251 35499 296.0 632 617 117.8
C 3 233 2756173 19237.38 621 627 143.2
C 14 254 322807 2249.25 621 627 143.2
C 0 10 248597 1731.16 621 627 143.2
D 8 195 673091 4427.99 623 607 151.9
D 13 249 384649 2528.74 623 607 151.9
D 2 250 169422 1111.57 623 607 151.9

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