ASTROSAT CZTI

Data Quality Report

Orbit 50132

Creation date: 2025-01-08T16:33:37.608967
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/AS1C09_003T01_9000006442_50132cztM0_level2.fits modeM0/AS1C09_003T01_9000006442_50132cztM0_level2_quad_clean.evt
Size (bytes)1,196,784,00064,517,760
Size1.1 GB 61.5 MB
Events in quadrant A13,466,803292,377
Events in quadrant B5,023,851654,689
Events in quadrant C13,965,969170,639
Events in quadrant D11,321,802362,173

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0446505
B0195642
C0460852
D0382912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6786405459.740642%
B67865708.399646%
C6786517476.245211%
D6786284841.968759%

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 7711 6787 3640 3640 47.21% 53.63%
B 7711 6787 389 389 5.04% 5.73%
C 7711 6787 3763 3763 48.80% 55.44%
D 7711 6787 2644 2644 34.29% 38.96%

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 6 250 5119279 38092.99 537 526 134.4
A 4 13 1898834 14126.92 537 526 134.4
A 0 98 1120421 8334.09 537 526 134.4
B 4 170 1024552 7054.71 685 661 145.1
B 4 206 457711 3149.12 685 661 145.1
B 5 185 152242 1044.41 685 661 145.1
C 4 111 4908717 47142.47 361 358 104.1
C 15 230 2755114 26458.13 361 358 104.1
C 15 147 1166752 11202.66 361 358 104.1
D 15 106 2777685 16935.85 568 548 164.0
D 15 168 1421849 8667.54 568 548 164.0
D 2 249 842862 5136.7 568 548 164.0

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