ASTROSAT CZTI

Data Quality Report

Orbit 33230

Creation date: 2024-06-27T20:46:22.034809
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/AS1A10_067T01_9000004774_33230cztM0_level2.evt modeM0/AS1A10_067T01_9000004774_33230cztM0_level2_quad_clean.evt
Size (bytes)520,695,36069,733,440
Size496.6 MB 66.5 MB
Events in quadrant A2,571,632443,298
Events in quadrant B3,912,506441,603
Events in quadrant C3,531,140429,503
Events in quadrant D5,375,385405,488

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112583
B0154122
C0142752
D0199442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A560220.035702%
B56021492.659764%
C56021162.070689%
D56022704.819707%

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 7245 5603 0 0 0.00% 0.00%
B 7245 5603 89 89 1.23% 1.59%
C 7245 5603 101 101 1.39% 1.80%
D 7245 5603 206 206 2.84% 3.68%

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 6 13015 92.83 662 649 133.2
A 13 254 8661 60.14 662 649 133.2
A 3 137 6315 42.53 662 649 133.2
B 4 170 779325 6270.46 648 632 124.2
B 5 172 426011 3425.38 648 632 124.2
B 0 199 35035 277.03 648 632 124.2
C 10 49 399908 2694.64 632 636 148.2
C 14 254 274240 1846.52 632 636 148.2
C 1 23 183338 1233.03 632 636 148.2
D 8 195 1672707 10877.32 631 615 153.7
D 7 80 281825 1829.33 631 615 153.7
D 2 250 247809 1608.05 631 615 153.7

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