ASTROSAT CZTI

Data Quality Report

Orbit 11132

Creation date: 2024-06-27T16:08:43.308111
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/AS1G08_071T02_9000001620_11132cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11132cztM0_level2_quad_clean.evt
Size (bytes)542,062,08063,936,000
Size517.0 MB 61.0 MB
Events in quadrant A4,515,776368,741
Events in quadrant B3,951,408380,724
Events in quadrant C3,090,467378,208
Events in quadrant D4,420,083356,440

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175463
B0157812
C0133782
D0174432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64693575.518627%
B64692103.246251%
C6469470.726542%
D64692854.405627%

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 7629 6470 219 219 2.87% 3.38%
B 7629 6470 73 73 0.96% 1.13%
C 7629 6470 2 2 0.03% 0.03%
D 7629 6470 217 217 2.84% 3.35%

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 8 5 1339378 8282.09 799 781 161.6
A 14 63 66484 406.51 799 781 161.6
A 8 15 26033 156.23 799 781 161.6
B 10 16 365764 2344.27 815 797 155.7
B 4 239 193917 1240.46 815 797 155.7
B 15 204 59967 380.06 815 797 155.7
C 9 54 11335 57.6 787 793 183.0
C 13 61 5950 28.18 787 793 183.0
C 14 234 5854 27.65 787 793 183.0
D 10 253 398721 2159.96 765 744 184.3
D 5 222 372561 2017.98 765 744 184.3
D 13 249 327422 1773.0 765 744 184.3

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