ASTROSAT CZTI

Data Quality Report

Orbit 17089

Creation date: 2024-06-27T17:31:54.881128
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_004T06_9000002536_17089cztM0_level2.evt modeM0/AS1A05_004T06_9000002536_17089cztM0_level2_quad_clean.evt
Size (bytes)257,713,92040,677,120
Size245.8 MB 38.8 MB
Events in quadrant A1,786,581245,502
Events in quadrant B1,888,376246,879
Events in quadrant C1,918,305236,421
Events in quadrant D1,952,705234,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078101
B081311
C080321
D083351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3785290.766182%
B3784391.030655%
C3784491.294926%
D3784370.977801%

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 4770 3786 0 0 0.00% 0.00%
B 4769 3785 3 3 0.06% 0.08%
C 4769 3784 0 0 0.00% 0.00%
D 4769 3784 10 10 0.21% 0.26%

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 0 226 4061 37.72 464 452 95.7
A 12 194 3394 30.75 464 452 95.7
A 3 137 3310 29.87 464 452 95.7
B 7 220 42496 473.34 463 452 88.8
B 0 219 12844 139.51 463 452 88.8
B 12 111 10553 113.72 463 452 88.8
C 3 233 95771 902.59 446 450 105.6
C 14 238 67500 634.9 446 450 105.6
C 9 54 16080 148.0 446 450 105.6
D 1 52 129152 1164.92 451 437 110.5
D 5 222 70215 631.52 451 437 110.5
D 15 0 24269 215.69 451 437 110.5

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