ASTROSAT CZTI

Data Quality Report

Orbit 28372

Creation date: 2024-06-27T19:51:04.499643
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/AS1A10_101T02_9000004084_28372cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28372cztM0_level2_quad_clean.evt
Size (bytes)461,563,20086,788,800
Size440.2 MB 82.8 MB
Events in quadrant A3,129,048559,498
Events in quadrant B3,395,527580,341
Events in quadrant C3,188,349540,493
Events in quadrant D3,846,574517,162

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129460
B0136920
C0129980
D0154430

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6170280.453809%
B6169530.859134%
C6169841.361647%
D61691101.783109%

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 6171 0 0 0.00% 0.00%
B 7474 6170 5 5 0.07% 0.08%
C 7474 6170 0 0 0.00% 0.00%
D 7474 6170 68 68 0.91% 1.10%

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 13 254 10772 61.61 809 795 161.9
A 15 47 8130 45.3 809 795 161.9
A 3 137 7579 41.9 809 795 161.9
B 10 245 155084 1005.57 816 799 153.4
B 0 230 19748 123.5 816 799 153.4
B 12 111 18734 116.89 816 799 153.4
C 14 238 126417 689.15 781 790 182.3
C 3 233 9989 50.46 781 790 182.3
C 13 61 5277 24.61 781 790 182.3
D 8 195 281129 1517.29 776 756 184.8
D 1 52 246073 1327.57 776 756 184.8
D 7 238 157053 845.83 776 756 184.8

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