ASTROSAT CZTI

Data Quality Report

Orbit 19290

Creation date: 2024-06-27T18:01:53.760115
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/AS1T03_099T03_9000002854_19290cztM0_level2.evt modeM0/AS1T03_099T03_9000002854_19290cztM0_level2_quad_clean.evt
Size (bytes)495,760,320112,887,360
Size472.8 MB 107.7 MB
Events in quadrant A3,139,621760,046
Events in quadrant B3,257,864763,424
Events in quadrant C3,205,499733,801
Events in quadrant D4,968,372706,715

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136331
B0138591
C0138601
D0189571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6524580.889025%
B6525610.934866%
C6525961.471264%
D65254667.141762%

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 7599 6524 0 0 0.00% 0.00%
B 7600 6525 5 5 0.07% 0.08%
C 7600 6525 0 0 0.00% 0.00%
D 7600 6525 392 392 5.16% 6.01%

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 13 254 8636 47.96 814 797 163.4
A 0 226 7221 39.31 814 797 163.4
A 3 137 6267 33.47 814 797 163.4
B 7 220 46269 300.31 802 782 151.5
B 3 64 19583 124.13 802 782 151.5
B 12 111 18294 115.62 802 782 151.5
C 14 238 121931 677.97 772 778 178.7
C 9 15 29950 163.25 772 778 178.7
C 9 54 18110 96.99 772 778 178.7
D 7 223 1553343 8224.24 777 753 188.8
D 1 52 277209 1464.42 777 753 188.8
D 13 138 84932 445.9 777 753 188.8

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