ASTROSAT CZTI

Data Quality Report

Orbit 33603

Creation date: 2024-06-27T20:50:41.114097
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/AS1A11_060T01_9000004808_33603cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33603cztM0_level2_quad_clean.evt
Size (bytes)340,876,80043,240,320
Size325.1 MB 41.2 MB
Events in quadrant A2,035,794272,823
Events in quadrant B3,340,229247,432
Events in quadrant C2,016,242270,044
Events in quadrant D2,678,893256,493

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085561
B0123261
C081561
D0105741

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3703100.270051%
B370361216.527140%
C3703330.891169%
D3703631.701323%

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 3703 3703 3 3 0.08% 0.08%
B 3703 3703 499 499 13.48% 13.48%
C 3703 3703 25 25 0.68% 0.68%
D 3703 3703 59 59 1.59% 1.59%

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 15 169 387209 4461.1 425 416 86.7
A 13 254 5838 62.53 425 416 86.7
A 3 137 4297 44.76 425 416 86.7
B 5 172 1615873 20930.86 392 382 77.2
B 4 251 94949 1225.24 392 382 77.2
B 15 222 29469 376.86 392 382 77.2
C 3 233 159968 1645.97 410 412 96.9
C 15 214 158018 1625.85 410 412 96.9
C 0 10 95189 977.71 410 412 96.9
D 8 195 738970 7215.77 411 398 102.4
D 2 250 131712 1282.92 411 398 102.4
D 14 52 67309 653.71 411 398 102.4

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