ASTROSAT CZTI

Data Quality Report

Orbit 09552

Creation date: 2024-06-27T15:47:38.960196
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_069T01_9000001356_09552cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09552cztM0_level2_quad_clean.evt
Size (bytes)140,348,16024,552,000
Size133.8 MB 23.4 MB
Events in quadrant A1,008,560157,893
Events in quadrant B1,054,941158,496
Events in quadrant C940,318154,301
Events in quadrant D1,129,787148,422

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040502
B042131
C037411
D045781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16831096.476530%
B16831176.951872%
C1683875.169340%
D16831046.179441%

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 2973 1684 0 0 0.00% 0.00%
B 2973 1684 4 4 0.13% 0.24%
C 2973 1684 0 0 0.00% 0.00%
D 2973 1684 7 7 0.24% 0.42%

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 19843 374.78 253 248 52.3
A 1 178 5611 102.57 253 248 52.3
A 1 161 5456 99.61 253 248 52.3
B 4 80 42889 874.61 247 242 48.8
B 0 214 24699 501.57 247 242 48.8
B 0 219 10600 212.42 247 242 48.8
C 13 61 1736 26.82 240 241 55.7
C 9 68 1183 16.9 240 241 55.7
C 3 202 572 5.94 240 241 55.7
D 12 227 125860 2133.23 243 236 58.9
D 1 52 24376 409.92 243 236 58.9
D 7 71 22990 386.39 243 236 58.9

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