ASTROSAT CZTI

Data Quality Report

Orbit 09597

Creation date: 2024-06-27T15:48:11.470617
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_238T01_9000001364_09597cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09597cztM0_level2_quad_clean.evt
Size (bytes)509,106,24064,869,120
Size485.5 MB 61.9 MB
Events in quadrant A4,001,347388,145
Events in quadrant B3,465,631385,713
Events in quadrant C3,224,405374,500
Events in quadrant D4,286,718362,922

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160673
B0141552
C0134732
D0168022

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64891632.511943%
B6489981.510248%
C6489500.770535%
D64892353.621513%

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 7794 6490 2 2 0.03% 0.03%
B 7794 6490 3 3 0.04% 0.05%
C 7794 6490 0 0 0.00% 0.00%
D 7794 6490 212 212 2.72% 3.27%

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 1 162 260851 1509.27 865 851 172.3
A 1 178 137247 791.76 865 851 172.3
A 1 161 129775 748.39 865 851 172.3
B 0 214 52015 313.34 859 840 163.3
B 0 189 43278 259.85 859 840 163.3
B 12 111 17599 102.62 859 840 163.3
C 13 61 6185 28.0 826 831 191.2
C 12 4 2097 6.62 826 831 191.2
C 3 202 2058 6.42 826 831 191.2
D 1 52 797289 3839.24 825 806 207.5
D 13 122 142718 684.05 825 806 207.5
D 13 104 61393 292.04 825 806 207.5

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