ASTROSAT CZTI

Data Quality Report

Orbit 14383

Creation date: 2024-06-27T16:54:18.635264
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/AS1A04_149T01_9000002118_14383cztM0_level2.evt modeM0/AS1A04_149T01_9000002118_14383cztM0_level2_quad_clean.evt
Size (bytes)208,722,24026,619,840
Size199.1 MB 25.4 MB
Events in quadrant A730,858205,104
Events in quadrant B845,050207,157
Events in quadrant C829,009198,626
Events in quadrant D3,810,02281,020

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031621
B035251
C034701
D0122771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152480.524934%
B1524110.721785%
C152430.196850%
D1524129985.236220%

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 1525 1525 3 3 0.20% 0.20%
B 1525 1525 3 3 0.20% 0.20%
C 1525 1525 0 0 0.00% 0.00%
D 1524 1524 1264 1264 82.94% 82.94%

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 4 2 8190 199.14 185 181 40.2
A 8 15 6046 145.83 185 181 40.2
A 2 242 1936 43.64 185 181 40.2
B 0 229 32682 851.38 187 183 38.2
B 10 245 29050 756.23 187 183 38.2
B 0 219 17120 443.7 187 183 38.2
C 3 233 148872 3521.37 174 175 42.2
C 13 61 1252 25.51 174 175 42.2
C 10 22 820 15.27 174 175 42.2
D 1 52 3439939 146368.62 88 85 23.5
D 2 120 8797 370.7 88 85 23.5
D 8 195 7791 327.9 88 85 23.5

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