ASTROSAT CZTI

Data Quality Report

Orbit 17210

Creation date: 2024-06-27T17:33:37.135895
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_185T04_9000002548_17210cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17210cztM0_level2_quad_clean.evt
Size (bytes)440,184,96092,171,520
Size419.8 MB 87.9 MB
Events in quadrant A3,023,155608,939
Events in quadrant B3,194,201613,506
Events in quadrant C3,199,637576,825
Events in quadrant D3,498,047564,588

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128472
B0133692
C0133332
D0145342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6125220.359184%
B6124380.620509%
C6124610.996081%
D6124811.322665%

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 7475 6126 0 0 0.00% 0.00%
B 7474 6125 4 4 0.05% 0.07%
C 7474 6124 0 0 0.00% 0.00%
D 7474 6125 47 47 0.63% 0.77%

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 11604 68.9 783 769 157.3
A 0 226 7071 40.07 783 769 157.3
A 12 194 5837 32.23 783 769 157.3
B 0 197 47882 321.68 784 768 146.5
B 6 36 37023 247.53 784 768 146.5
B 12 111 16502 107.43 784 768 146.5
C 3 233 150684 865.75 751 758 173.2
C 14 238 117233 672.59 751 758 173.2
C 13 61 5281 26.12 751 758 173.2
D 5 222 526142 2869.9 760 738 183.1
D 12 110 46488 249.9 760 738 183.1
D 12 233 30163 160.73 760 738 183.1

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