ASTROSAT CZTI

Data Quality Report

Orbit 09069

Creation date: 2024-06-27T15:40:51.717913
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/AS1G07_070T02_9000001262_09069cztM0_level2.evt modeM0/AS1G07_070T02_9000001262_09069cztM0_level2_quad_clean.evt
Size (bytes)1,207,572,480227,001,600
Size1.1 GB 216.5 MB
Events in quadrant A9,405,0191,407,234
Events in quadrant B8,196,4011,425,191
Events in quadrant C7,915,4411,424,094
Events in quadrant D9,836,4081,377,428

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03999416
B03690113
C03660811
D0415445

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180061440.799733%
B180051000.555401%
C18006460.255470%
D180092971.649175%

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 20070 18013 16 16 0.08% 0.09%
B 20070 18011 4 4 0.02% 0.02%
C 20070 18013 2 2 0.01% 0.01%
D 20070 18013 181 181 0.90% 1.00%

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 1342651 3238.7 2053 2008 413.9
A 5 16 53264 123.82 2053 2008 413.9
A 15 239 49183 113.96 2053 2008 413.9
B 12 111 43223 104.63 2071 2021 393.8
B 0 214 35839 85.88 2071 2021 393.8
B 11 111 35135 84.09 2071 2021 393.8
C 14 234 28537 56.81 2019 2031 466.5
C 13 61 15151 28.12 2019 2031 466.5
C 12 4 10146 17.39 2019 2031 466.5
D 2 14 704553 1349.42 1998 1946 520.7
D 1 52 606611 1161.31 1998 1946 520.7
D 8 195 352105 672.51 1998 1946 520.7

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