ASTROSAT CZTI

Data Quality Report

Orbit 21349

Creation date: 2024-06-27T18:26:52.998552
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_226T05_9000003148_21349cztM0_level2.evt modeM0/AS1A05_226T05_9000003148_21349cztM0_level2_quad_clean.evt
Size (bytes)305,256,96060,243,840
Size291.1 MB 57.5 MB
Events in quadrant A1,602,047445,456
Events in quadrant B1,798,984437,602
Events in quadrant C1,447,433414,074
Events in quadrant D4,190,505312,516

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064170
B071300
C060790
D0144730

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3002120.399734%
B3003692.297702%
C300380.266400%
D3003137645.820846%

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 3002 3002 5 5 0.17% 0.17%
B 3003 3003 61 61 2.03% 2.03%
C 3003 3003 0 0 0.00% 0.00%
D 3003 3003 1257 1257 41.86% 41.86%

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 5 168 60857 787.67 381 375 76.8
A 12 96 53494 691.78 381 375 76.8
A 11 47 10495 131.79 381 375 76.8
B 0 189 238523 3470.17 368 360 68.6
B 3 64 40461 584.29 368 360 68.6
B 0 190 21311 305.27 368 360 68.6
C 14 238 57774 698.65 354 357 82.2
C 13 61 2514 26.25 354 357 82.2
C 10 23 2472 25.74 354 357 82.2
D 13 174 2861664 41114.16 288 279 69.6
D 1 52 121821 1746.39 288 279 69.6
D 12 235 35288 503.03 288 279 69.6

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