ASTROSAT CZTI

Data Quality Report

Orbit 07530

Creation date: 2024-06-27T15:20:54.082491
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_076T01_9000001038_07530cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07530cztM0_level2_quad_clean.evt
Size (bytes)514,509,120101,327,040
Size490.7 MB 96.6 MB
Events in quadrant A3,494,128642,203
Events in quadrant B3,599,901656,502
Events in quadrant C3,438,853634,801
Events in quadrant D4,528,972602,371

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158183
B0159872
C0157642
D0189432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7670470.612777%
B7670760.990874%
C7670230.299870%
D76701732.255541%

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 8765 7672 0 0 0.00% 0.00%
B 8765 7672 1 1 0.01% 0.01%
C 8765 7672 0 0 0.00% 0.00%
D 8765 7672 120 120 1.37% 1.56%

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 13 14 10939 54.1 903 882 185.9
A 0 23 9576 46.77 903 882 185.9
A 0 226 9240 44.96 903 882 185.9
B 12 111 17330 94.43 914 891 174.1
B 0 219 14534 78.37 914 891 174.1
B 11 111 13794 74.11 914 891 174.1
C 1 16 8722 38.48 875 878 203.9
C 13 61 6902 29.55 875 878 203.9
C 8 128 5177 21.09 875 878 203.9
D 2 244 580253 2739.64 862 832 211.5
D 12 233 210946 993.47 862 832 211.5
D 2 152 130441 612.82 862 832 211.5

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