ASTROSAT CZTI

Data Quality Report

Orbit 03100

Creation date: 2024-06-27T14:24:38.788426
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/AS1G05_237T03_9000000426_03100cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03100cztM0_level2_quad_clean.evt
Size (bytes)551,770,56069,310,080
Size526.2 MB 66.1 MB
Events in quadrant A3,455,192419,391
Events in quadrant B3,764,259418,391
Events in quadrant C5,182,289391,159
Events in quadrant D3,844,337392,323

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143822
B0154341
C0200391
D0163341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68451482.162162%
B68451672.439737%
C684572110.533236%
D68452623.827611%

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 7530 6846 7 7 0.09% 0.10%
B 7530 6845 33 33 0.44% 0.48%
C 7530 6846 564 564 7.49% 8.24%
D 7530 6846 194 194 2.58% 2.83%

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 8 15 275583 1657.9 800 781 165.8
A 14 249 40571 240.06 800 781 165.8
A 12 247 29977 176.14 800 781 165.8
B 15 204 180987 1141.01 807 787 157.9
B 0 219 122511 770.75 807 787 157.9
B 1 223 98263 617.21 807 787 157.9
C 1 192 1747077 10027.56 746 751 174.2
C 14 223 358176 2052.37 746 751 174.2
C 5 250 85191 484.86 746 751 174.2
D 1 7 402143 2055.5 746 726 195.3
D 2 107 289007 1476.18 746 726 195.3
D 13 46 97549 495.79 746 726 195.3

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