ASTROSAT CZTI

Data Quality Report

Orbit 33482

Creation date: 2024-06-27T20:49:18.976213
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_9000004804_33482cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33482cztM0_level2_quad_clean.evt
Size (bytes)493,764,48051,307,200
Size470.9 MB 48.9 MB
Events in quadrant A2,448,984306,087
Events in quadrant B3,483,736309,462
Events in quadrant C3,106,169307,212
Events in quadrant D5,579,096283,009

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100073
B0132662
C0120512
D0200042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A495060.121212%
B49502875.797980%
C4950561.131313%
D495075215.191919%

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 7104 4952 0 0 0.00% 0.00%
B 7104 4952 222 222 3.12% 4.48%
C 7104 4952 38 38 0.53% 0.77%
D 7104 4952 689 689 9.70% 13.91%

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 13 254 8031 58.97 632 622 125.6
A 3 137 5940 42.33 632 622 125.6
A 10 83 5763 40.92 632 622 125.6
B 5 172 607839 5108.88 625 611 118.9
B 5 255 385917 3241.75 625 611 118.9
B 12 111 14056 113.12 625 611 118.9
C 10 49 238160 1638.26 630 638 145.0
C 15 214 215350 1480.94 630 638 145.0
C 0 10 146907 1008.86 630 638 145.0
D 2 250 1764673 12396.52 588 573 142.3
D 8 195 967982 6798.09 588 573 142.3
D 13 249 410937 2883.67 588 573 142.3

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