ASTROSAT CZTI

Data Quality Report

Orbit 14213

Creation date: 2024-06-27T16:51:59.309389
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_084T01_9000002100_14213cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14213cztM0_level2_quad_clean.evt
Size (bytes)478,828,80092,877,120
Size456.6 MB 88.6 MB
Events in quadrant A3,155,408606,871
Events in quadrant B3,306,761615,838
Events in quadrant C3,302,084593,042
Events in quadrant D4,323,066570,774

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130772
B0134261
C0134051
D0170901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60961111.820866%
B60961262.066929%
C6096991.624016%
D60962193.592520%

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 7337 6097 1 1 0.01% 0.02%
B 7337 6097 2 2 0.03% 0.03%
C 7337 6098 1 1 0.01% 0.02%
D 7337 6098 102 102 1.39% 1.67%

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 12 189 22901 139.26 804 788 158.8
A 8 15 22105 134.25 804 788 158.8
A 0 226 7192 40.33 804 788 158.8
B 4 97 41059 273.24 797 778 147.4
B 0 189 30958 204.72 797 778 147.4
B 0 219 30135 199.14 797 778 147.4
C 3 233 263638 1490.03 779 785 176.4
C 13 61 5725 28.0 779 785 176.4
C 14 234 3301 14.26 779 785 176.4
D 5 222 692223 3785.06 774 755 182.7
D 8 195 418155 2284.82 774 755 182.7
D 10 199 227573 1241.59 774 755 182.7

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