ASTROSAT CZTI

Data Quality Report

Orbit 14083

Creation date: 2024-06-27T16:50:09.371458
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_022T01_9000002078_14083cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14083cztM0_level2_quad_clean.evt
Size (bytes)522,112,32084,657,600
Size497.9 MB 80.7 MB
Events in quadrant A3,783,502555,038
Events in quadrant B4,396,157527,423
Events in quadrant C3,231,601530,457
Events in quadrant D3,974,909511,876

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153943
B0172212
C0135782
D0162282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62831272.021327%
B62834547.225848%
C6283580.923126%
D62831021.623428%

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 7629 6285 20 20 0.26% 0.32%
B 7629 6285 187 187 2.45% 2.98%
C 7629 6285 0 0 0.00% 0.00%
D 7629 6285 14 14 0.18% 0.22%

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 15 222 306897 1820.35 858 843 168.1
A 12 189 90184 531.38 858 843 168.1
A 9 143 36834 214.07 858 843 168.1
B 10 16 952606 6161.8 831 813 154.5
B 10 245 59431 379.48 831 813 154.5
B 0 189 41116 260.91 831 813 154.5
C 3 233 52395 279.1 815 819 184.8
C 13 61 5898 27.48 815 819 184.8
C 0 207 4209 18.34 815 819 184.8
D 1 52 325176 1708.18 812 794 189.9
D 8 195 119840 626.89 812 794 189.9
D 12 144 109982 574.98 812 794 189.9

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