ASTROSAT CZTI

Data Quality Report

Orbit 21030

Creation date: 2024-06-27T18:22:42.449422
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/AS1A05_088T02_9000003106_21030cztM0_level2.evt modeM0/AS1A05_088T02_9000003106_21030cztM0_level2_quad_clean.evt
Size (bytes)440,297,28092,174,400
Size419.9 MB 87.9 MB
Events in quadrant A3,052,793605,087
Events in quadrant B3,471,306617,841
Events in quadrant C3,096,610581,911
Events in quadrant D3,295,659556,942

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128522
B0141522
C0129272
D0138892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A615160.097545%
B6151881.430662%
C6151340.552756%
D6151490.796618%

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 7466 6152 0 0 0.00% 0.00%
B 7466 6152 32 32 0.43% 0.52%
C 7466 6152 0 0 0.00% 0.00%
D 7466 6152 28 28 0.38% 0.46%

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 15 192 14001 84.01 788 773 157.5
A 13 254 8111 46.61 788 773 157.5
A 0 226 6817 38.39 788 773 157.5
B 0 189 110569 745.55 793 773 147.3
B 7 220 104082 701.5 793 773 147.3
B 3 64 78894 530.46 793 773 147.3
C 14 238 120529 674.96 761 768 177.4
C 13 61 5124 24.55 761 768 177.4
C 9 54 4068 18.6 761 768 177.4
D 1 52 198902 1087.71 758 738 182.2
D 1 239 72498 393.89 758 738 182.2
D 15 0 65057 353.04 758 738 182.2

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