ASTROSAT CZTI

Data Quality Report

Orbit 00386

Creation date: 2024-06-27T13:59:23.990798
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/AS1P01_161T04_9000000060_00386cztM0_level2.evt modeM0/AS1P01_161T04_9000000060_00386cztM0_level2_quad_clean.evt
Size (bytes)234,138,24020,537,280
Size223.3 MB 19.6 MB
Events in quadrant A1,693,925132,382
Events in quadrant B1,645,549126,861
Events in quadrant C1,510,272131,085
Events in quadrant D2,142,337123,650

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060590
B059140
C055360
D074060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A144820.138122%
B144820.138122%
C144820.138122%
D1448594.074586%

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 1448 1448 27 27 1.86% 1.86%
B 1448 1448 17 17 1.17% 1.17%
C 1448 1448 7 7 0.48% 0.48%
D 1448 1448 194 194 13.40% 13.40%

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 0 238 28811 305.01 421 419 93.1
A 15 200 11404 118.01 421 419 93.1
A 12 243 6778 68.31 421 419 93.1
B 4 82 26135 257.47 417 419 99.9
B 15 82 5369 49.56 417 419 99.9
B 0 23 4349 39.35 417 419 99.9
C 3 159 32732 304.26 373 386 106.3
C 3 9 6267 55.32 373 386 106.3
C 5 234 3999 33.99 373 386 106.3
D 13 7 450902 3944.86 367 380 114.2
D 1 4 87439 762.31 367 380 114.2
D 1 5 63384 551.68 367 380 114.2

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