ASTROSAT CZTI

Data Quality Report

Orbit 09517

Creation date: 2024-06-27T15:47:09.206788
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/AS1G05_230T06_9000001350_09517cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09517cztM0_level2_quad_clean.evt
Size (bytes)567,233,28097,153,920
Size541.0 MB 92.7 MB
Events in quadrant A4,260,836594,382
Events in quadrant B4,044,090603,552
Events in quadrant C3,775,043589,273
Events in quadrant D4,514,296559,367

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272359056
B0264218688
C0257078371
D0288519809

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025786
B025880
C025783
D025773

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132
B0130
C0132
D0141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8512500.587406%
B8589280.325998%
C860180.093012%
D8442250.296138%

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 14024 10443 4 4 0.03% 0.04%
B 14024 10546 1 1 0.01% 0.01%
C 14020 10502 0 0 0.00% 0.00%
D 14024 10429 7 7 0.05% 0.07%

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 1 162 210999 1037.14 987 968 202.5
A 1 178 82372 401.98 987 968 202.5
A 1 161 81983 400.06 987 968 202.5
B 0 214 83455 428.22 1001 975 192.6
B 0 219 43530 220.94 1001 975 192.6
B 12 111 21057 104.26 1001 975 192.6
C 8 128 7809 30.29 963 966 225.9
C 13 61 7208 27.63 963 966 225.9
C 8 222 4773 16.85 963 966 225.9
D 8 195 464476 1939.03 939 913 239.1
D 1 52 149224 620.36 939 913 239.1
D 2 152 120020 498.21 939 913 239.1

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