ASTROSAT CZTI

Data Quality Report

Orbit 33534

Creation date: 2024-06-27T20:49:51.571496
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/AS1A11_060T01_9000004808_33534cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33534cztM0_level2_quad_clean.evt
Size (bytes)507,041,28081,002,880
Size483.6 MB 77.3 MB
Events in quadrant A2,939,942533,130
Events in quadrant B3,707,216516,268
Events in quadrant C3,346,735508,867
Events in quadrant D4,968,339488,932

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126053
B0146452
C0136032
D0187102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58111582.718981%
B58113956.797453%
C58111172.013423%
D58111522.615729%

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 8976 5813 36 36 0.40% 0.62%
B 8976 5813 222 222 2.47% 3.82%
C 8976 5813 89 89 0.99% 1.53%
D 8976 5812 146 146 1.63% 2.51%

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 15 169 288876 2099.84 682 669 137.3
A 13 254 10121 68.87 682 669 137.3
A 13 6 8350 55.96 682 669 137.3
B 5 255 509209 3912.51 666 648 130.0
B 5 172 475298 3651.62 666 648 130.0
B 4 251 41958 317.81 666 648 130.0
C 0 10 361588 2367.92 660 666 152.4
C 15 214 251291 1644.29 660 666 152.4
C 14 254 82025 533.78 660 666 152.4
D 8 195 1590020 9809.25 660 644 162.0
D 2 250 468182 2885.53 660 644 162.0
D 15 0 111365 683.34 660 644 162.0

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