ASTROSAT CZTI

Data Quality Report

Orbit 46352

Creation date: 2024-06-27T23:22:06.634996
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/AS1A13_070T05_9000006198_46352cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46352cztM0_level2_quad_clean.evt
Size (bytes)1,093,714,560204,085,440
Size1.0 GB 194.6 MB
Events in quadrant A15,918,4241,222,623
Events in quadrant B7,841,4191,404,586
Events in quadrant C6,051,8891,406,295
Events in quadrant D9,627,2181,210,214

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02720
B02720
C02720
D02720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0566602
B0326302
C0280802
D0382962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13538185413.694785%
B135396104.505503%
C13539680.502253%
D135399547.046311%

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 14548 13540 1172 1172 8.06% 8.66%
B 14549 13541 258 258 1.77% 1.91%
C 14549 13541 11 11 0.08% 0.08%
D 14549 13540 569 569 3.91% 4.20%

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 10 83 6024246 20009.89 1445 1408 301.0
A 15 223 2843578 9442.64 1445 1408 301.0
A 0 247 819849 2719.14 1445 1408 301.0
B 5 172 1059489 3549.03 1505 1455 298.1
B 4 171 162816 541.26 1505 1455 298.1
B 0 190 152953 508.18 1505 1455 298.1
C 12 2 65764 180.14 1504 1509 356.7
C 3 233 48999 133.14 1504 1509 356.7
C 9 54 45862 124.34 1504 1509 356.7
D 1 52 1444555 3960.48 1448 1402 364.4
D 12 1 825342 2261.16 1448 1402 364.4
D 2 249 414253 1133.0 1448 1402 364.4

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