ASTROSAT CZTI

Data Quality Report

Orbit 07512

Creation date: 2024-06-27T15:20:41.381022
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/AS1A02_134T01_9000001036_07512cztM0_level2.evt modeM0/AS1A02_134T01_9000001036_07512cztM0_level2_quad_clean.evt
Size (bytes)466,024,32079,793,280
Size444.4 MB 76.1 MB
Events in quadrant A3,169,693503,822
Events in quadrant B3,338,764507,674
Events in quadrant C3,712,698485,853
Events in quadrant D3,455,123469,645

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135633
B0142032
C0153092
D0147042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64351011.569542%
B64351041.616162%
C6435771.196581%
D64351612.501943%

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 7695 6435 0 0 0.00% 0.00%
B 7695 6435 1 1 0.01% 0.02%
C 7695 6436 0 0 0.00% 0.00%
D 7695 6435 74 74 0.96% 1.15%

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 13 14 15483 89.81 818 802 163.5
A 3 1 8397 46.46 818 802 163.5
A 0 226 7982 43.92 818 802 163.5
B 0 214 136269 894.1 818 802 151.5
B 4 81 15605 97.7 818 802 151.5
B 12 111 14171 88.24 818 802 151.5
C 9 68 620131 3508.16 782 783 176.5
C 8 229 34738 192.33 782 783 176.5
C 13 61 6095 30.09 782 783 176.5
D 2 152 157881 829.03 782 757 189.5
D 2 14 124115 650.87 782 757 189.5
D 1 52 95854 501.76 782 757 189.5

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