ASTROSAT CZTI

Data Quality Report

Orbit 07488

Creation date: 2024-06-27T15:20:22.773566
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/AS1A02_165T03_9000001032_07488cztM0_level2.evt modeM0/AS1A02_165T03_9000001032_07488cztM0_level2_quad_clean.evt
Size (bytes)255,375,36059,126,400
Size243.5 MB 56.4 MB
Events in quadrant A1,803,226375,680
Events in quadrant B1,906,490385,940
Events in quadrant C1,800,911383,229
Events in quadrant D1,952,665366,064

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082871
B084921
C082741
D088291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3954390.986343%
B3954571.441578%
C3954270.682853%
D3954581.466869%

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 4239 3956 0 0 0.00% 0.00%
B 4239 3956 4 4 0.09% 0.10%
C 4239 3956 0 0 0.00% 0.00%
D 4239 3956 16 16 0.38% 0.40%

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 15 234 8491 83.56 464 454 96.2
A 15 239 5799 55.57 464 454 96.2
A 0 226 4251 39.48 464 454 96.2
B 0 214 31370 331.05 472 458 93.4
B 4 173 15114 156.96 472 458 93.4
B 4 81 12447 128.4 472 458 93.4
C 10 22 4978 41.38 459 460 109.2
C 12 4 4153 33.82 459 460 109.2
C 13 61 3446 27.35 459 460 109.2
D 2 14 77516 689.75 452 437 111.7
D 2 136 53264 472.73 452 437 111.7
D 1 52 41888 370.93 452 437 111.7

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