ASTROSAT CZTI

Data Quality Report

Orbit 19380

Creation date: 2024-06-27T18:02:09.919993
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/AS1A05_025T17_9000002868_19380cztM0_level2.evt modeM0/AS1A05_025T17_9000002868_19380cztM0_level2_quad_clean.evt
Size (bytes)271,008,00045,109,440
Size258.5 MB 43.0 MB
Events in quadrant A1,182,132346,415
Events in quadrant B1,188,896354,065
Events in quadrant C1,178,456331,452
Events in quadrant D4,517,688185,376

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048541
B048781
C048451
D0147991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2036763.732809%
B2035824.029484%
C2035974.766585%
D2035184590.663391%

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 3316 2036 0 0 0.00% 0.00%
B 3315 2035 0 0 0.00% 0.00%
C 3315 2035 0 0 0.00% 0.00%
D 3314 2034 1561 1561 47.10% 76.75%

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 0 226 2827 41.06 306 301 61.5
A 5 16 2323 32.87 306 301 61.5
A 12 194 2222 31.23 306 301 61.5
B 4 216 6790 115.02 300 294 56.5
B 12 111 5858 98.52 300 294 56.5
B 11 111 5339 89.33 300 294 56.5
C 14 238 46751 699.9 288 290 66.4
C 5 4 3366 46.34 288 290 66.4
C 13 61 2084 27.03 288 290 66.4
D 10 66 2683270 59286.84 186 180 45.3
D 7 238 1024803 22640.56 186 180 45.3
D 12 218 69455 1530.73 186 180 45.3

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