ASTROSAT CZTI

Data Quality Report

Orbit 08710

Creation date: 2024-06-27T15:36:25.224075
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/AS1G07_027T01_9000001210_08710cztM0_level2.evt modeM0/AS1G07_027T01_9000001210_08710cztM0_level2_quad_clean.evt
Size (bytes)466,165,44068,918,400
Size444.6 MB 65.7 MB
Events in quadrant A3,310,367410,779
Events in quadrant B3,252,236412,147
Events in quadrant C3,170,037410,489
Events in quadrant D3,938,568395,017

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139953
B0137652
C0136282
D0158932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65691031.567971%
B6569941.430964%
C6569841.278733%
D65693134.764804%

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 7674 6569 5 5 0.07% 0.08%
B 7674 6569 0 0 0.00% 0.00%
C 7674 6569 1 1 0.01% 0.02%
D 7674 6569 152 152 1.98% 2.31%

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 13 251 71212 415.62 832 815 169.4
A 15 174 22356 127.18 832 815 169.4
A 5 16 8894 47.7 832 815 169.4
B 12 111 16197 96.2 832 812 159.9
B 11 111 13282 77.98 832 812 159.9
B 4 173 10507 60.62 832 812 159.9
C 14 234 11700 58.02 808 813 187.7
C 13 61 6148 28.43 808 813 187.7
C 14 67 3528 14.47 808 813 187.7
D 2 152 522532 2741.62 788 771 190.3
D 8 195 139981 731.49 788 771 190.3
D 1 52 126192 659.03 788 771 190.3

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