ASTROSAT CZTI

Data Quality Report

Orbit 08404

Creation date: 2024-06-27T15:32:23.467404
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/AS1G07_027T01_9000001180_08404cztM0_level2.evt modeM0/AS1G07_027T01_9000001180_08404cztM0_level2_quad_clean.evt
Size (bytes)398,632,32087,707,520
Size380.2 MB 83.6 MB
Events in quadrant A2,788,245565,953
Events in quadrant B3,147,664568,476
Events in quadrant C2,699,814571,297
Events in quadrant D3,037,787540,362

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121901
B0131391
C0119951
D0130191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5866110.187521%
B5866370.630753%
C586670.119332%
D5866390.664848%

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 6856 5867 1 1 0.01% 0.02%
B 6856 5867 9 9 0.13% 0.15%
C 6856 5867 0 0 0.00% 0.00%
D 6856 5867 25 25 0.36% 0.43%

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 5 16 41766 283.0 706 692 145.1
A 13 248 18717 124.19 706 692 145.1
A 15 174 11032 71.24 706 692 145.1
B 4 48 226825 1676.38 709 693 134.9
B 0 214 97493 717.6 709 693 134.9
B 0 219 28909 209.17 709 693 134.9
C 13 61 5116 27.5 691 695 160.8
C 8 222 2947 14.01 691 695 160.8
C 12 4 2688 12.4 691 695 160.8
D 6 225 102834 607.04 683 661 168.3
D 7 71 99332 586.24 683 661 168.3
D 4 95 78048 459.78 683 661 168.3

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