ASTROSAT CZTI

Data Quality Report

Orbit 34403

Creation date: 2022-02-08T10:11:58.148430
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_085T01_9000004910_34403cztM0_level2.evt modeM0/AS1A05_085T01_9000004910_34403cztM0_level2_quad_clean.evt
Size (bytes)517,464,00083,868,480
Size493.5 MB 80.0 MB
Events in quadrant A2,632,227557,584
Events in quadrant B3,230,790554,352
Events in quadrant C2,899,657562,915
Events in quadrant D6,533,348477,066

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114323
B0130752
C0120022
D0234002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5542130.234572%
B55421462.634428%
C5542210.378925%
D554285115.355467%

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 7215 5543 1 1 0.01% 0.02%
B 7215 5543 104 104 1.44% 1.88%
C 7215 5543 9 9 0.12% 0.16%
D 7215 5543 784 784 10.87% 14.14%

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 10 83 35145 256.27 663 650 134.6
A 9 143 23736 171.51 663 650 134.6
A 13 254 10175 70.76 663 650 134.6
B 5 172 506333 4032.39 652 634 125.4
B 0 190 72423 572.44 652 634 125.4
B 5 255 43927 345.21 652 634 125.4
C 15 214 233848 1569.93 640 646 148.5
C 0 10 64632 430.76 640 646 148.5
C 14 254 51317 341.12 640 646 148.5
D 7 223 1951387 13200.8 601 584 147.8
D 8 195 933637 6313.83 601 584 147.8
D 2 249 335843 2268.65 601 584 147.8

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