ASTROSAT CZTI

Data Quality Report

Orbit 29972

Creation date: 2024-06-27T20:09:22.762306
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_053T11_9000004302_29972cztM0_level2.evt modeM0/AS1A10_053T11_9000004302_29972cztM0_level2_quad_clean.evt
Size (bytes)441,057,60040,245,120
Size420.6 MB 38.4 MB
Events in quadrant A2,661,775212,335
Events in quadrant B4,532,691210,023
Events in quadrant C2,705,320206,369
Events in quadrant D3,084,595204,481

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114121
B0171251
C0113011
D0125711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5488270.491983%
B5488821.494169%
C5488530.965743%
D5488711.293732%

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 6343 5489 7 7 0.11% 0.13%
B 6343 5489 2 2 0.03% 0.04%
C 6343 5489 0 0 0.00% 0.00%
D 6343 5489 50 50 0.79% 0.91%

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 12 96 61037 453.98 667 654 133.0
A 8 192 12645 90.15 667 654 133.0
A 13 254 10064 70.75 667 654 133.0
B 6 159 1604797 12559.45 657 640 127.7
B 6 36 331852 2593.16 657 640 127.7
B 12 111 15746 118.27 657 640 127.7
C 14 238 104364 675.54 646 650 153.5
C 3 233 65682 423.59 646 650 153.5
C 2 114 12570 77.64 646 650 153.5
D 8 195 256681 1657.61 650 633 154.5
D 12 233 240134 1550.48 650 633 154.5
D 13 249 53687 343.46 650 633 154.5

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