ASTROSAT CZTI

Data Quality Report

Orbit 09628

Creation date: 2024-06-27T15:48:38.398393
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_033T01_9000001368_09628cztM0_level2.evt modeM0/AS1A03_033T01_9000001368_09628cztM0_level2_quad_clean.evt
Size (bytes)515,537,28074,989,440
Size491.7 MB 71.5 MB
Events in quadrant A3,686,180444,674
Events in quadrant B3,342,510458,670
Events in quadrant C3,094,159447,503
Events in quadrant D5,030,914448,635

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01550343
B01441653
C01401965
D01966149

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67583354.957088%
B67551502.220577%
C67501251.851852%
D676277011.387164%

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 7434 6779 130 130 1.75% 1.92%
B 7434 6777 0 0 0.00% 0.00%
C 7434 6779 3 3 0.04% 0.04%
D 7434 6779 562 562 7.56% 8.29%

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 14 111 618869 3837.8 788 770 161.1
A 3 1 12991 75.88 788 770 161.1
A 1 162 10077 57.79 788 770 161.1
B 0 214 95931 617.33 808 787 154.1
B 0 229 52875 337.96 808 787 154.1
B 12 111 15832 97.62 808 787 154.1
C 4 254 67739 374.58 775 776 178.8
C 13 61 5872 28.51 775 776 178.8
C 15 127 2209 8.02 775 776 178.8
D 1 52 1793644 9717.14 733 712 184.5
D 8 195 170116 918.12 733 712 184.5
D 13 137 118926 640.68 733 712 184.5

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