ASTROSAT CZTI

Data Quality Report

Orbit 05780

Creation date: 2024-06-27T14:59:03.775575
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/AS1G06_002T01_9000000742_05780cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05780cztM0_level2_quad_clean.evt
Size (bytes)220,668,48041,883,840
Size210.4 MB 39.9 MB
Events in quadrant A1,567,060258,088
Events in quadrant B1,666,022260,667
Events in quadrant C1,538,933260,981
Events in quadrant D1,683,453252,804

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071033
B071963
C070983
D073505

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A33231534.604273%
B33231574.724646%
C3323672.016250%
D3322411.234196%

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 3339 3325 0 0 0.00% 0.00%
B 3339 3325 1 1 0.03% 0.03%
C 3339 3325 0 0 0.00% 0.00%
D 3339 3325 0 0 0.00% 0.00%

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 12 194 3916 41.33 406 395 85.2
A 0 226 3872 40.81 406 395 85.2
A 15 79 2235 21.6 406 395 85.2
B 15 204 65828 804.68 407 396 81.3
B 12 111 7793 90.97 407 396 81.3
B 4 81 7633 89.0 407 396 81.3
C 8 128 8787 91.81 389 389 91.5
C 1 16 3965 39.09 389 389 91.5
C 8 112 3842 37.75 389 389 91.5
D 8 195 150661 1530.12 393 378 98.2
D 10 15 26494 265.9 393 378 98.2
D 2 136 14980 148.67 393 378 98.2

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