ASTROSAT CZTI

Data Quality Report

Orbit 13103

Creation date: 2024-06-27T16:36:21.490849
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/AS1C03_023T01_9000001930_13103cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13103cztM0_level2_quad_clean.evt
Size (bytes)732,908,16083,724,480
Size699.0 MB 79.8 MB
Events in quadrant A3,766,559533,628
Events in quadrant B10,061,716425,184
Events in quadrant C3,474,140544,705
Events in quadrant D4,391,827515,748

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158673
B0347482
C0153722
D0180182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74012002.702338%
B7401330744.683151%
C74011381.864613%
D74012963.999460%

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 7672 7403 3 3 0.04% 0.04%
B 7672 7403 2625 2625 34.22% 35.46%
C 7672 7403 0 0 0.00% 0.00%
D 7672 7403 108 108 1.41% 1.46%

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 12 189 163979 871.02 905 884 187.2
A 15 223 63249 333.07 905 884 187.2
A 15 239 21922 112.36 905 884 187.2
B 0 85 7218921 54143.58 672 653 133.3
B 3 64 123213 919.31 672 653 133.3
B 4 239 60866 451.65 672 653 133.3
C 13 61 6432 26.37 888 891 210.1
C 8 128 4373 16.57 888 891 210.1
C 14 234 3236 11.16 888 891 210.1
D 13 122 496113 2330.79 874 847 212.5
D 10 157 272822 1279.95 874 847 212.5
D 1 52 171149 801.46 874 847 212.5

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