ASTROSAT CZTI

Data Quality Report

Orbit 34044

Creation date: 2024-06-27T20:55:48.275094
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/AS1A06_003T04_9000004866_34044cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34044cztM0_level2_quad_clean.evt
Size (bytes)614,462,40049,605,120
Size586.0 MB 47.3 MB
Events in quadrant A3,691,017287,792
Events in quadrant B6,853,354252,557
Events in quadrant C3,455,277298,833
Events in quadrant D4,242,614282,279

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144353
B0239692
C0135552
D0163182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54173586.608824%
B5417173331.991877%
C5417691.273768%
D54172053.784382%

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 7359 5418 258 258 3.51% 4.76%
B 7359 5417 1546 1546 21.01% 28.54%
C 7359 5418 60 60 0.82% 1.11%
D 7359 5418 182 182 2.47% 3.36%

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 1071089 7957.77 672 660 134.5
A 10 83 17585 125.82 672 660 134.5
A 13 254 9371 64.76 672 660 134.5
B 5 31 2234630 19078.05 623 607 117.1
B 5 15 1206787 10300.51 623 607 117.1
B 5 172 392267 3344.69 623 607 117.1
C 3 233 280020 1832.44 666 673 152.4
C 0 10 268363 1755.97 666 673 152.4
C 15 214 255031 1668.52 666 673 152.4
D 2 249 570982 3535.67 656 638 161.3
D 8 195 568597 3520.89 656 638 161.3
D 13 249 253642 1568.42 656 638 161.3

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