ASTROSAT CZTI

Data Quality Report

Orbit 42366

Creation date: 2024-06-27T22:39:28.107574
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/AS1C06_010T01_9000005800_42366cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42366cztM0_level2_quad_clean.evt
Size (bytes)350,654,40098,009,280
Size334.4 MB 93.5 MB
Events in quadrant A3,235,303646,424
Events in quadrant B3,003,111652,710
Events in quadrant C2,784,640645,745
Events in quadrant D3,480,087595,634

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135342
B0135672
C0124812
D0148242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6123110.179650%
B6123340.555283%
C612440.065317%
D61241442.351404%

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 8718 6125 3 3 0.03% 0.05%
B 8718 6125 12 12 0.14% 0.20%
C 8719 6126 1 1 0.01% 0.02%
D 8719 6126 127 127 1.46% 2.07%

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 10 83 629255 4752.7 647 633 132.3
A 2 79 33974 252.07 647 633 132.3
A 13 248 29481 218.11 647 633 132.3
B 0 189 101166 805.06 641 623 124.9
B 5 255 84689 673.13 641 623 124.9
B 3 112 52800 417.79 641 623 124.9
C 15 214 259828 1751.49 634 638 148.0
C 15 111 35993 238.91 634 638 148.0
C 12 249 9223 58.01 634 638 148.0
D 1 52 309583 2002.88 629 611 154.3
D 12 6 250155 1617.64 629 611 154.3
D 5 70 97400 627.42 629 611 154.3

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