ASTROSAT CZTI

Data Quality Report

Orbit 32188

Creation date: 2024-06-27T20:37:23.467223
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/AS1A09_131T01_9000004690_32188cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32188cztM0_level2_quad_clean.evt
Size (bytes)614,903,04087,523,200
Size586.4 MB 83.5 MB
Events in quadrant A3,161,567559,336
Events in quadrant B5,420,999556,861
Events in quadrant C4,290,114535,160
Events in quadrant D5,308,087543,820

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137132
B0209271
C0170681
D0201801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6525350.536398%
B65251792.743295%
C6525108916.689655%
D65252664.076628%

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 7565 6526 0 0 0.00% 0.00%
B 7565 6526 44 44 0.58% 0.67%
C 7565 6526 61 61 0.81% 0.93%
D 7565 6526 143 143 1.89% 2.19%

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 12 96 23194 137.43 809 792 163.0
A 13 6 14394 83.45 809 792 163.0
A 13 254 12510 71.89 809 792 163.0
B 6 159 1942648 12840.83 799 778 151.2
B 12 18 114590 752.59 799 778 151.2
B 5 172 89053 583.73 799 778 151.2
C 14 238 376151 2207.91 730 736 170.0
C 14 254 340056 1995.63 730 736 170.0
C 3 233 336886 1976.98 730 736 170.0
D 8 195 1625101 8640.84 787 764 188.0
D 7 38 222921 1181.79 787 764 188.0
D 12 233 147982 783.14 787 764 188.0

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