ASTROSAT CZTI

Data Quality Report

Orbit 08694

Creation date: 2024-06-27T15:36:00.781370
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_024T01_9000001206_08694cztM0_level2.evt modeM0/AS1G07_024T01_9000001206_08694cztM0_level2_quad_clean.evt
Size (bytes)84,594,24024,292,800
Size80.7 MB 23.2 MB
Events in quadrant A600,331163,332
Events in quadrant B659,489160,149
Events in quadrant C596,490156,798
Events in quadrant D609,274152,629

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048832099
B052982477
C049922201
D049692148

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04820
B04719
C04620
D04816

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A137810.072569%
B133040.300752%
C135780.589536%
D135940.294334%

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 2405 1730 0 0 0.00% 0.00%
B 2403 1673 1 1 0.04% 0.06%
C 2405 1731 6 6 0.25% 0.35%
D 2404 1722 2 2 0.08% 0.12%

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 13 251 10388 308.88 152 148 33.2
A 15 174 2169 60.95 152 148 33.2
A 0 226 1484 40.29 152 148 33.2
B 0 219 29201 990.43 146 143 29.3
B 0 214 12084 407.0 146 143 29.3
B 10 16 11658 392.48 146 143 29.3
C 14 234 28365 806.33 145 145 35.0
C 13 61 1155 28.86 145 145 35.0
C 8 222 1076 26.6 145 145 35.0
D 2 152 20670 548.34 147 142 37.4
D 2 14 13525 357.48 147 142 37.4
D 9 64 6017 156.93 147 142 37.4

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