ASTROSAT CZTI

Data Quality Report

Orbit 07105

Creation date: 2024-06-27T15:15:38.582252
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_090T01_9000000970_07105cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07105cztM0_level2_quad_clean.evt
Size (bytes)454,587,84082,368,000
Size433.5 MB 78.6 MB
Events in quadrant A3,125,976518,063
Events in quadrant B3,371,794529,227
Events in quadrant C3,135,302512,183
Events in quadrant D3,691,490480,336

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133993
B0141232
C0134422
D0151372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A650990.138270%
B6509270.414810%
C6509230.353357%
D6509390.599170%

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 7759 6509 0 0 0.00% 0.00%
B 7759 6509 2 2 0.03% 0.03%
C 7759 6510 0 0 0.00% 0.00%
D 7759 6510 24 24 0.31% 0.37%

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 0 226 7427 40.71 809 793 163.0
A 12 194 7407 40.59 809 793 163.0
A 3 1 5909 31.39 809 793 163.0
B 0 214 87358 556.9 825 810 155.4
B 4 81 43375 273.89 825 810 155.4
B 0 219 33396 209.68 825 810 155.4
C 4 254 38564 206.84 790 799 182.6
C 9 68 9459 47.43 790 799 182.6
C 13 61 6242 29.81 790 799 182.6
D 8 195 258486 1346.07 780 761 191.5
D 1 20 206509 1074.6 780 761 191.5
D 2 216 126441 656.41 780 761 191.5

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