ASTROSAT CZTI

Data Quality Report

Orbit 29082

Creation date: 2024-06-27T20:00:07.311001
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/AS1A10_115T01_9000004178_29082cztM0_level2.evt modeM0/AS1A10_115T01_9000004178_29082cztM0_level2_quad_clean.evt
Size (bytes)500,195,52093,029,760
Size477.0 MB 88.7 MB
Events in quadrant A3,185,756600,580
Events in quadrant B3,353,670619,255
Events in quadrant C3,219,843595,526
Events in quadrant D4,954,592554,998

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135422
B0138772
C0134972
D0190952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6406360.561973%
B6406570.889791%
C6406610.952232%
D64062874.480175%

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 7546 6406 0 0 0.00% 0.00%
B 7545 6405 4 4 0.05% 0.06%
C 7545 6405 0 0 0.00% 0.00%
D 7546 6406 293 293 3.88% 4.57%

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 11980 67.6 820 806 165.3
A 6 16 10235 57.04 820 806 165.3
A 0 13 8396 45.91 820 806 165.3
B 0 183 40263 254.33 821 800 155.2
B 0 230 31496 197.83 821 800 155.2
B 5 255 24652 153.72 821 800 155.2
C 14 238 128493 697.11 786 793 183.2
C 2 114 15506 80.32 786 793 183.2
C 2 16 5605 26.27 786 793 183.2
D 1 52 890635 4821.2 775 754 184.6
D 8 195 750813 4063.67 775 754 184.6
D 12 233 336517 1819.1 775 754 184.6

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