ASTROSAT CZTI

Data Quality Report

Orbit 10622

Creation date: 2024-06-27T16:01:36.696298
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/AS1T01_191T01_9000001536_10622cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10622cztM0_level2_quad_clean.evt
Size (bytes)434,940,48090,198,720
Size414.8 MB 86.0 MB
Events in quadrant A2,866,188601,105
Events in quadrant B4,068,085586,400
Events in quadrant C2,680,306592,799
Events in quadrant D3,178,871561,189

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122512
B0157761
C0117441
D0129151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5573370.663915%
B55733406.100843%
C5573130.233268%
D5573270.484479%

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 6818 5574 0 0 0.00% 0.00%
B 6818 5574 206 206 3.02% 3.70%
C 6818 5574 1 1 0.01% 0.02%
D 6818 5574 17 17 0.25% 0.30%

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 13 251 149198 1038.39 692 682 143.0
A 1 162 27255 185.79 692 682 143.0
A 1 178 9526 61.83 692 682 143.0
B 4 239 1308872 10110.61 679 667 129.4
B 0 219 39901 303.22 679 667 129.4
B 0 214 23503 176.49 679 667 129.4
C 4 254 94964 614.72 660 668 153.4
C 14 234 5399 30.84 660 668 153.4
C 13 61 4997 28.22 660 668 153.4
D 2 16 286687 1770.58 654 639 161.6
D 8 195 220093 1358.38 654 639 161.6
D 13 104 64502 395.3 654 639 161.6

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