ASTROSAT CZTI

Data Quality Report

Orbit 21045

Creation date: 2024-06-27T18:22:53.389173
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_104T04_9000003108_21045cztM0_level2.evt modeM0/AS1A05_104T04_9000003108_21045cztM0_level2_quad_clean.evt
Size (bytes)445,700,160103,305,600
Size425.1 MB 98.5 MB
Events in quadrant A3,100,263681,169
Events in quadrant B3,632,811705,923
Events in quadrant C3,218,634667,549
Events in quadrant D3,127,610643,737

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131032
B0147352
C0133992
D0133938

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6162200.324570%
B6162460.746511%
C6162731.184680%
D6161400.649245%

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 7472 6163 0 0 0.00% 0.00%
B 7472 6163 0 0 0.00% 0.00%
C 7472 6163 4 4 0.05% 0.06%
D 7471 6162 18 18 0.24% 0.29%

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 13 254 7966 44.81 804 789 160.2
A 0 226 6819 37.65 804 789 160.2
A 3 137 6218 33.89 804 789 160.2
B 7 205 396838 2632.28 811 792 150.5
B 0 230 55334 362.51 811 792 150.5
B 12 111 17836 113.28 811 792 150.5
C 14 238 122801 668.15 784 789 182.6
C 3 9 33550 179.4 784 789 182.6
C 9 54 6133 29.26 784 789 182.6
D 1 52 65031 339.32 781 760 189.4
D 13 172 51182 266.2 781 760 189.4
D 9 1 44362 230.2 781 760 189.4

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