ASTROSAT CZTI

Data Quality Report

Orbit 33117

Creation date: 2024-06-27T20:45:10.159181
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/AS1A11_046T06_9000004764_33117cztM0_level2.evt modeM0/AS1A11_046T06_9000004764_33117cztM0_level2_quad_clean.evt
Size (bytes)103,996,80019,120,320
Size99.2 MB 18.2 MB
Events in quadrant A529,293134,648
Events in quadrant B931,754120,050
Events in quadrant C647,472130,377
Events in quadrant D977,145123,302

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021742
B034671
C025621
D035621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A89920.222469%
B89919321.468298%
C899303.337041%
D899586.451613%

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 899 899 0 0 0.00% 0.00%
B 899 899 120 120 13.35% 13.35%
C 899 899 17 17 1.89% 1.89%
D 899 899 33 33 3.67% 3.67%

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 13 254 1538 48.77 136 134 28.8
A 0 226 1239 38.39 136 134 28.8
A 10 248 1176 36.2 136 134 28.8
B 5 172 437080 17693.82 120 117 24.7
B 0 189 7371 293.71 120 117 24.7
B 0 230 5358 212.2 120 117 24.7
C 0 10 85130 2810.37 125 125 30.2
C 7 221 62699 2068.78 125 125 30.2
C 10 49 5609 181.31 125 125 30.2
D 2 249 181461 5005.26 126 123 36.2
D 7 223 93716 2583.34 126 123 36.2
D 8 195 83616 2304.56 126 123 36.2

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