ASTROSAT CZTI

Data Quality Report

Orbit 10683

Creation date: 2024-06-27T16:02:26.201612
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_097T01_9000001540_10683cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10683cztM0_level2_quad_clean.evt
Size (bytes)496,244,16082,722,240
Size473.3 MB 78.9 MB
Events in quadrant A2,908,875532,428
Events in quadrant B4,120,837529,259
Events in quadrant C2,788,952537,721
Events in quadrant D4,796,262479,323

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127892
B0162551
C0124821
D0184371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6101330.540895%
B61012924.786101%
C610160.098345%
D61013375.523685%

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 7381 6102 14 14 0.19% 0.23%
B 7381 6102 175 175 2.37% 2.87%
C 7381 6102 1 1 0.01% 0.02%
D 7381 6102 312 312 4.23% 5.11%

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 78697 537.84 718 704 145.0
A 15 239 21789 145.4 718 704 145.0
A 1 162 13901 91.01 718 704 145.0
B 4 239 1025054 7527.43 718 699 136.1
B 0 85 106232 775.5 718 699 136.1
B 0 219 60157 436.92 718 699 136.1
C 14 234 7411 40.4 712 716 165.7
C 13 61 5285 27.57 712 716 165.7
C 9 68 3752 18.32 712 716 165.7
D 2 16 612810 3747.56 684 668 163.3
D 2 14 570444 3488.2 684 668 163.3
D 10 199 355901 2174.75 684 668 163.3

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