ASTROSAT CZTI

Data Quality Report

Orbit 04344

Creation date: 2024-06-27T14:40:38.971954
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/AS1G05_219T01_9000000540_04344cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04344cztM0_level2_quad_clean.evt
Size (bytes)876,409,92066,908,160
Size835.8 MB 63.8 MB
Events in quadrant A3,237,100480,276
Events in quadrant B16,345,120156,235
Events in quadrant C3,215,295469,831
Events in quadrant D3,298,123456,878

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141592
B0529941
C0141501
D0143141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66081392.103511%
B6608593089.739709%
C66081021.543584%
D66081061.604116%

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 7578 6608 15 15 0.20% 0.23%
B 7577 6607 5766 5766 76.10% 87.27%
C 7578 6608 8 8 0.11% 0.12%
D 7578 6608 16 16 0.21% 0.24%

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 7 16 90207 541.75 799 782 165.1
A 15 234 32565 192.55 799 782 165.1
A 8 15 22463 131.35 799 782 165.1
B 3 0 13825944 181842.56 391 383 76.0
B 10 16 557588 7328.71 391 383 76.0
B 0 187 328558 4316.37 391 383 76.0
C 9 247 180971 998.45 766 770 180.5
C 9 16 38327 208.09 766 770 180.5
C 13 61 6408 31.24 766 770 180.5
D 13 53 141041 748.69 772 750 187.4
D 2 136 80635 426.32 772 750 187.4
D 12 233 41522 217.59 772 750 187.4

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