ASTROSAT CZTI

Data Quality Report

Orbit 10132

Creation date: 2024-06-27T15:55:24.548471
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/AS1A03_116T01_9000001460_10132cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10132cztM0_level2_quad_clean.evt
Size (bytes)525,430,080105,295,680
Size501.1 MB 100.4 MB
Events in quadrant A3,249,526703,686
Events in quadrant B4,714,367697,272
Events in quadrant C3,047,524691,695
Events in quadrant D4,469,055651,302

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137962
B0184791
C0132751
D0176621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63741552.431754%
B63742483.890806%
C6374801.255099%
D63742513.937873%

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 7614 6374 28 28 0.37% 0.44%
B 7614 6374 126 126 1.65% 1.98%
C 7614 6375 0 0 0.00% 0.00%
D 7614 6374 151 151 1.98% 2.37%

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 15 174 91202 545.34 815 802 165.8
A 8 192 11874 66.79 815 802 165.8
A 8 15 8571 46.87 815 802 165.8
B 4 81 1362463 8969.32 807 790 151.8
B 0 214 72815 474.43 807 790 151.8
B 0 219 60166 391.11 807 790 151.8
C 14 67 19429 104.77 774 780 178.0
C 13 61 5991 29.28 774 780 178.0
C 4 175 4150 18.93 774 780 178.0
D 4 95 620186 3339.24 774 754 185.5
D 8 195 442515 2381.45 774 754 185.5
D 2 152 134514 721.07 774 754 185.5

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