ASTROSAT CZTI

Data Quality Report

Orbit 33452

Creation date: 2024-06-27T20:49:00.767652
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_065T07_9000004798_33452cztM0_level2.evt modeM0/AS1A11_065T07_9000004798_33452cztM0_level2_quad_clean.evt
Size (bytes)516,769,92078,897,600
Size492.8 MB 75.2 MB
Events in quadrant A2,549,730518,649
Events in quadrant B3,179,884529,972
Events in quadrant C5,066,525502,077
Events in quadrant D4,498,570470,956

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106483
B0126302
C0182052
D0170462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525280.152323%
B52521472.798934%
C525286416.450876%
D52521472.798934%

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 7345 5253 0 0 0.00% 0.00%
B 7345 5253 115 115 1.57% 2.19%
C 7345 5252 811 811 11.04% 15.44%
D 7344 5252 137 137 1.87% 2.61%

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 13 254 9320 66.65 654 644 130.2
A 13 6 8939 63.73 654 644 130.2
A 7 192 6154 42.33 654 644 130.2
B 5 172 404109 3294.31 647 631 122.5
B 5 255 129226 1049.95 647 631 122.5
B 4 171 40645 326.71 647 631 122.5
C 9 187 2341369 17894.15 571 577 130.8
C 15 214 212398 1619.26 571 577 130.8
C 0 10 157481 1199.45 571 577 130.8
D 8 195 1418107 9367.06 621 604 151.3
D 2 250 339433 2239.03 621 604 151.3
D 13 249 160719 1058.06 621 604 151.3

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