ASTROSAT CZTI

Data Quality Report

Orbit 08324

Creation date: 2024-06-27T15:30:59.560468
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_093T01_9000001156_08324cztM0_level2.evt modeM0/AS1A03_093T01_9000001156_08324cztM0_level2_quad_clean.evt
Size (bytes)441,901,44084,905,280
Size421.4 MB 81.0 MB
Events in quadrant A3,200,435536,001
Events in quadrant B3,407,151543,928
Events in quadrant C3,310,673530,109
Events in quadrant D3,033,425518,263

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132694
B0139041
C0139871
D0131401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6348881.386263%
B63491382.173571%
C63491111.748307%
D6349731.149787%

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 7429 6349 0 0 0.00% 0.00%
B 7429 6350 26 26 0.35% 0.41%
C 7429 6350 41 41 0.55% 0.65%
D 7429 6349 3 3 0.04% 0.05%

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 15 239 35049 210.97 800 784 162.4
A 13 251 31099 186.65 800 784 162.4
A 13 14 21567 127.96 800 784 162.4
B 0 187 131632 861.31 798 780 151.9
B 0 214 85553 558.01 798 780 151.9
B 4 81 57935 376.21 798 780 151.9
C 9 54 320142 1792.63 767 770 178.2
C 13 61 5903 28.81 767 770 178.2
C 3 202 1870 6.17 767 770 178.2
D 2 152 65204 329.35 772 752 195.7
D 2 14 22989 113.63 772 752 195.7
D 2 234 22768 112.5 772 752 195.7

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