ASTROSAT CZTI

Data Quality Report

Orbit 17569

Creation date: 2024-06-27T17:38:05.810393
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/AS1A05_012T02_9000002602_17569cztM0_level2.evt modeM0/AS1A05_012T02_9000002602_17569cztM0_level2_quad_clean.evt
Size (bytes)485,043,84097,669,440
Size462.6 MB 93.1 MB
Events in quadrant A3,193,044648,876
Events in quadrant B3,090,456657,213
Events in quadrant C3,081,725620,150
Events in quadrant D4,880,204575,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013992147
B013605123
C013603144
D019206190

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01322
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6536400.611995%
B6545210.320856%
C6539500.764643%
D653966310.139165%

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 7744 6588 15 15 0.19% 0.23%
B 7744 6593 0 0 0.00% 0.00%
C 7744 6593 1 1 0.01% 0.02%
D 7744 6596 660 660 8.52% 10.01%

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 14 237 188641 1186.18 782 765 158.4
A 0 226 6776 37.95 782 765 158.4
A 12 194 5704 31.18 782 765 158.4
B 12 111 17269 111.56 781 760 148.0
B 11 111 15061 96.64 781 760 148.0
B 4 216 12637 80.26 781 760 148.0
C 14 238 117944 682.94 742 745 171.6
C 0 207 28181 159.87 742 745 171.6
C 3 233 28062 159.18 742 745 171.6
D 12 227 1661530 9491.2 723 701 175.0
D 13 189 385861 2201.09 723 701 175.0
D 5 222 67776 383.32 723 701 175.0

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