ASTROSAT CZTI

Data Quality Report

Orbit 46022

Creation date: 2024-06-27T23:18:50.307166
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/AS1A13_033T02_9000006154_46022cztM0_level2.fits modeM0/AS1A13_033T02_9000006154_46022cztM0_level2_quad_clean.evt
Size (bytes)616,746,240106,994,880
Size588.2 MB 102.0 MB
Events in quadrant A6,061,608722,779
Events in quadrant B8,512,167657,414
Events in quadrant C3,552,493732,496
Events in quadrant D4,185,921661,248

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225722
B0300298
C0151452
D0169862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66853144.697083%
B6685137620.583396%
C66852063.081526%
D66852984.457741%

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 8660 6687 29 29 0.33% 0.43%
B 8660 6685 920 920 10.62% 13.76%
C 8660 6685 137 137 1.58% 2.05%
D 8660 6685 200 200 2.31% 2.99%

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 3039173 18947.2 769 751 160.4
A 2 79 27642 167.69 769 751 160.4
A 13 6 11463 66.8 769 751 160.4
B 3 112 5464731 37574.06 735 712 145.4
B 12 48 65322 444.3 735 712 145.4
B 4 171 49685 336.77 735 712 145.4
C 14 254 356975 1970.02 767 772 180.8
C 12 2 103806 569.84 767 772 180.8
C 3 233 49321 268.51 767 772 180.8
D 1 52 497008 2629.03 760 740 188.8
D 2 249 452660 2394.1 760 740 188.8
D 5 235 182877 964.89 760 740 188.8

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