ASTROSAT CZTI

Data Quality Report

Orbit 06590

Creation date: 2024-06-27T15:09:09.764234
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/AS1C02_002T01_9000000888_06590cztM0_level2.evt modeM0/AS1C02_002T01_9000000888_06590cztM0_level2_quad_clean.evt
Size (bytes)176,630,4007,165,440
Size168.4 MB 6.8 MB
Events in quadrant A1,181,70615,816
Events in quadrant B1,169,16816,049
Events in quadrant C1,153,15115,328
Events in quadrant D1,698,25314,926

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049013
B048052
C048092
D064812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A211930514.393582%
B211927412.930628%
C21191768.305805%
D211931614.912695%

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 2174 2121 0 0 0.00% 0.00%
B 2174 2121 0 0 0.00% 0.00%
C 2174 2121 0 0 0.00% 0.00%
D 2174 2121 99 99 4.55% 4.67%

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 14 111 60578 957.53 288 278 63.0
A 8 15 12594 195.57 288 278 63.0
A 0 226 2726 38.87 288 278 63.0
B 0 219 21616 347.36 293 283 61.4
B 12 111 6616 103.12 293 283 61.4
B 11 111 5144 79.15 293 283 61.4
C 8 128 5536 73.4 292 292 71.4
C 8 112 2508 31.02 292 292 71.4
C 13 61 2369 29.07 292 292 71.4
D 2 33 477241 6639.98 280 270 71.8
D 2 14 74176 1028.86 280 270 71.8
D 2 136 53350 738.93 280 270 71.8

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