ASTROSAT CZTI

Data Quality Report

Orbit 09062

Creation date: 2024-06-27T15:40:46.009710
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_046T01_9000001260_09062cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09062cztM0_level2_quad_clean.evt
Size (bytes)471,340,80074,747,520
Size449.5 MB 71.3 MB
Events in quadrant A3,601,603453,052
Events in quadrant B3,728,898455,073
Events in quadrant C3,087,398461,125
Events in quadrant D3,420,689446,495

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01357
B01364
C01366
D01366

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015020462
B015680581
C013705304
D014689409

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64012463.843150%
B63892614.085146%
C64501872.899225%
D64192303.583113%

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 8933 6564 4 4 0.04% 0.06%
B 8935 6564 18 18 0.20% 0.27%
C 8933 6562 2 2 0.02% 0.03%
D 8935 6572 30 30 0.34% 0.46%

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 456020 2874.41 793 776 158.4
A 15 174 44728 277.51 793 776 158.4
A 15 239 22429 136.72 793 776 158.4
B 10 16 563656 3785.35 795 777 148.7
B 0 219 24416 158.97 795 777 148.7
B 12 111 15767 100.81 795 777 148.7
C 14 234 8032 40.26 788 791 179.9
C 13 61 5995 28.93 788 791 179.9
C 12 4 4199 18.95 788 791 179.9
D 1 52 209721 1088.86 782 760 191.9
D 2 14 89533 462.58 782 760 191.9
D 12 233 52879 271.58 782 760 191.9

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