ASTROSAT CZTI

Data Quality Report

Orbit 01333

Creation date: 2024-06-27T14:11:07.150542
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/AS1G04_002T02_9000000230_01333cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01333cztM0_level2_quad_clean.evt
Size (bytes)1,022,267,52094,265,280
Size974.9 MB 89.9 MB
Events in quadrant A7,359,759615,198
Events in quadrant B8,138,599622,224
Events in quadrant C8,076,159600,337
Events in quadrant D6,972,749582,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262852
B0286051
C0284001
D0252111

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6220230.369775%
B6220380.610932%
C6220240.385852%
D62201722.765273%

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 7305 6222 262 262 3.59% 4.21%
B 7305 6222 400 400 5.48% 6.43%
C 7305 6222 415 415 5.68% 6.67%
D 7305 6222 464 464 6.35% 7.46%

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 14 5 131106 288.42 1864 1875 448.1
A 4 32 53309 114.79 1864 1875 448.1
A 12 243 11668 21.86 1864 1875 448.1
B 8 4 591798 1284.72 1944 1951 459.1
B 15 22 70781 149.92 1944 1951 459.1
B 12 52 40280 83.48 1944 1951 459.1
C 3 9 919901 1907.86 1737 1794 481.2
C 15 241 307406 635.07 1737 1794 481.2
C 3 111 19640 37.08 1737 1794 481.2
D 15 13 638107 1246.77 1650 1710 510.4
D 10 84 69437 132.68 1650 1710 510.4
D 2 88 33005 61.31 1650 1710 510.4

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