ASTROSAT CZTI

Data Quality Report

Orbit 20544

Creation date: 2024-06-27T18:16:38.138753
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_022T08_9000003036_20544cztM0_level2.evt modeM0/AS1A05_022T08_9000003036_20544cztM0_level2_quad_clean.evt
Size (bytes)333,498,24062,081,280
Size318.0 MB 59.2 MB
Events in quadrant A2,294,199395,525
Events in quadrant B2,553,315390,126
Events in quadrant C2,330,414375,435
Events in quadrant D2,580,970367,537

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100600
B0107740
C0101530
D0111520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A500550.099900%
B5006621.238514%
C5006170.339592%
D5006460.918897%

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 5005 5005 0 0 0.00% 0.00%
B 5006 5006 39 39 0.78% 0.78%
C 5006 5006 0 0 0.00% 0.00%
D 5006 5006 42 42 0.84% 0.84%

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 6 16 17018 135.55 589 576 121.3
A 15 174 6747 50.88 589 576 121.3
A 0 226 5083 37.16 589 576 121.3
B 7 220 209875 1855.26 581 567 112.8
B 0 197 22817 197.22 581 567 112.8
B 12 111 13562 115.19 581 567 112.8
C 14 238 87373 655.78 559 561 132.4
C 8 208 46432 346.51 559 561 132.4
C 10 91 17085 124.82 559 561 132.4
D 1 52 237926 1679.72 565 547 141.3
D 13 153 184810 1303.87 565 547 141.3
D 2 234 20446 140.81 565 547 141.3

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