ASTROSAT CZTI

Data Quality Report

Orbit 42695

Creation date: 2024-06-27T22:43:09.682744
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_013T01_9000005822_42695cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42695cztM0_level2_quad_clean.evt
Size (bytes)338,204,16090,095,040
Size322.5 MB 85.9 MB
Events in quadrant A3,315,529603,126
Events in quadrant B2,808,011612,800
Events in quadrant C2,618,312590,769
Events in quadrant D3,356,516542,999

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130372
B0117552
C0110452
D0136322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5404771.424870%
B5404390.721688%
C540480.148038%
D54051182.183164%

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 9111 5406 58 58 0.64% 1.07%
B 9111 5406 21 21 0.23% 0.39%
C 9111 5406 1 1 0.01% 0.02%
D 9112 5407 116 116 1.27% 2.15%

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 590717 4863.7 597 587 121.3
A 13 248 354241 2914.73 597 587 121.3
A 15 237 35039 283.94 597 587 121.3
B 0 229 340793 2983.26 588 573 114.0
B 5 172 64823 563.38 588 573 114.0
B 0 245 26540 227.69 588 573 114.0
C 15 214 230526 1693.31 581 584 135.8
C 8 79 48208 350.71 581 584 135.8
C 14 254 23911 171.78 581 584 135.8
D 12 233 372229 2585.93 580 563 143.7
D 2 249 279503 1940.77 580 563 143.7
D 1 47 246341 1710.04 580 563 143.7

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