ASTROSAT CZTI

Data Quality Report

Orbit 33388

Creation date: 2024-06-27T20:48:16.334306
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/AS1A10_064T02_9000004788_33388cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33388cztM0_level2_quad_clean.evt
Size (bytes)1,084,371,840150,022,080
Size1.0 GB 143.1 MB
Events in quadrant A5,504,262959,485
Events in quadrant B7,711,882958,887
Events in quadrant C6,190,916949,567
Events in quadrant D12,639,875861,216

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024624634
B031422805
C026075678
D0476331819

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02466
B02455
C02438
D02466

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1181380.067722%
B117887266.158806%
C11798740.627225%
D116828717.455915%

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 14725 11944 0 0 0.00% 0.00%
B 14774 11948 513 513 3.47% 4.29%
C 14742 11928 60 60 0.41% 0.50%
D 14701 11833 712 712 4.84% 6.02%

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 12 16 70747 249.34 1383 1352 278.3
A 15 169 64544 227.05 1383 1352 278.3
A 12 194 20499 68.8 1383 1352 278.3
B 5 172 1054927 4122.16 1338 1304 255.6
B 0 219 494827 1930.84 1338 1304 255.6
B 5 255 260257 1013.12 1338 1304 255.6
C 15 214 499154 1618.67 1337 1348 307.5
C 0 10 220235 711.73 1337 1348 307.5
C 1 23 128955 414.93 1337 1348 307.5
D 8 195 4332665 13362.96 1299 1259 324.1
D 1 52 923553 2845.4 1299 1259 324.1
D 2 250 505180 1554.66 1299 1259 324.1

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