ASTROSAT CZTI

Data Quality Report

Orbit 09325

Creation date: 2024-06-27T15:44:32.311662
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_009T01_9000001318_09325cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09325cztM0_level2_quad_clean.evt
Size (bytes)383,359,68079,099,200
Size365.6 MB 75.4 MB
Events in quadrant A3,171,942484,707
Events in quadrant B2,689,214510,456
Events in quadrant C2,607,575506,423
Events in quadrant D2,737,678480,440

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022
B022
C010
D031

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173604147
B0153163326
C0151853080
D0158553521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015432
B015434
C015428
D015335

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5780310.536332%
B5906110.186251%
C599740.066700%
D5879380.646368%

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 7720 6631 2 2 0.03% 0.03%
B 7719 6711 0 0 0.00% 0.00%
C 7720 6770 1 1 0.01% 0.01%
D 7722 6724 24 24 0.31% 0.36%

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 8 5 625257 4636.5 656 643 134.7
A 1 162 14906 105.87 656 643 134.7
A 0 226 5834 38.53 656 643 134.7
B 8 234 22993 169.48 677 660 131.8
B 10 245 21232 156.12 677 660 131.8
B 12 111 14983 108.7 677 660 131.8
C 10 22 6768 39.49 664 668 154.5
C 13 61 4939 27.65 664 668 154.5
C 9 68 3616 19.09 664 668 154.5
D 12 227 129592 771.18 641 625 167.2
D 1 52 84064 498.94 641 625 167.2
D 12 233 37475 220.35 641 625 167.2

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