ASTROSAT CZTI

Data Quality Report

Orbit 13204

Creation date: 2024-06-27T16:37:40.909196
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/AS1A04_104T04_9000001966_13204cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13204cztM0_level2_quad_clean.evt
Size (bytes)571,579,20096,013,440
Size545.1 MB 91.6 MB
Events in quadrant A3,489,401598,684
Events in quadrant B4,401,508601,832
Events in quadrant C3,309,196619,588
Events in quadrant D5,612,065576,039

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153252
B0179691
C0150501
D0217561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73471982.694978%
B73475106.941609%
C73471061.442766%
D73473955.376344%

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 7558 7350 12 12 0.16% 0.16%
B 7558 7350 218 218 2.88% 2.97%
C 7558 7350 0 0 0.00% 0.00%
D 7558 7350 188 188 2.49% 2.56%

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 72917 406.35 865 843 177.4
A 12 189 48275 267.42 865 843 177.4
A 1 162 19901 107.45 865 843 177.4
B 4 239 989203 6004.33 848 824 164.6
B 0 214 32239 190.84 848 824 164.6
B 3 64 29891 176.58 848 824 164.6
C 14 234 11469 54.41 844 848 195.2
C 15 208 8441 38.9 844 848 195.2
C 13 61 6151 27.16 844 848 195.2
D 13 122 1752460 8689.81 831 804 201.6
D 8 195 314792 1557.67 831 804 201.6
D 1 52 276032 1365.38 831 804 201.6

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