ASTROSAT CZTI

Data Quality Report

Orbit 16360

Creation date: 2024-06-27T17:21:34.274665
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_069T03_9000002416_16360cztM0_level2.evt modeM0/AS1A05_069T03_9000002416_16360cztM0_level2_quad_clean.evt
Size (bytes)528,419,52093,297,600
Size503.9 MB 89.0 MB
Events in quadrant A3,773,926583,874
Events in quadrant B3,923,182594,335
Events in quadrant C3,822,716565,645
Events in quadrant D3,963,087548,830

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162213
B0163932
C0160852
D0170192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76542943.841129%
B76542843.710478%
C76542763.605958%
D76543013.932584%

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 7775 7655 13 13 0.17% 0.17%
B 7775 7656 6 6 0.08% 0.08%
C 7775 7656 0 0 0.00% 0.00%
D 7775 7656 64 64 0.82% 0.84%

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 15 174 125718 652.26 945 922 191.3
A 15 223 11519 55.39 945 922 191.3
A 0 226 8145 37.75 945 922 191.3
B 0 189 53674 288.59 944 917 182.8
B 15 35 43438 232.6 944 917 182.8
B 0 198 40891 218.67 944 917 182.8
C 14 238 138517 647.97 905 910 212.4
C 3 233 128588 601.21 905 910 212.4
C 10 169 15870 70.44 905 910 212.4
D 12 110 222659 983.11 919 891 225.6
D 10 70 152767 673.28 919 891 225.6
D 1 52 66705 291.76 919 891 225.6

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