ASTROSAT CZTI

Data Quality Report

Orbit 30724

Creation date: 2024-06-27T20:18:54.995060
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_071T11_9000004436_30724cztM0_level2.evt modeM0/AS1A10_071T11_9000004436_30724cztM0_level2_quad_clean.evt
Size (bytes)459,256,32058,803,840
Size438.0 MB 56.1 MB
Events in quadrant A2,524,799371,459
Events in quadrant B3,838,300369,805
Events in quadrant C2,463,945354,956
Events in quadrant D4,744,335334,846

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106561
B0149732
C0103691
D0177561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4978290.582563%
B4977761.527024%
C4977611.225638%
D49771893.797468%

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 5708 4978 5 5 0.09% 0.10%
B 5707 4977 0 0 0.00% 0.00%
C 5707 4977 0 0 0.00% 0.00%
D 5707 4977 134 134 2.35% 2.69%

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 13 123065 977.53 613 600 125.3
A 8 192 32449 254.22 613 600 125.3
A 13 254 8997 67.03 613 600 125.3
B 6 159 1434070 12041.2 607 591 119.0
B 12 111 14796 119.32 607 591 119.0
B 11 111 13640 109.61 607 591 119.0
C 14 238 92645 657.79 587 590 139.9
C 3 233 47066 332.1 587 590 139.9
C 2 114 11912 80.9 587 590 139.9
D 8 195 2211136 15726.75 585 571 140.6
D 10 253 148363 1051.45 585 571 140.6
D 13 168 55583 391.38 585 571 140.6

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