ASTROSAT CZTI

Data Quality Report

Orbit 10217

Creation date: 2024-06-27T15:56:29.769905
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/AS1A03_099T01_9000001472_10217cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10217cztM0_level2_quad_clean.evt
Size (bytes)505,872,00088,179,840
Size482.4 MB 84.1 MB
Events in quadrant A4,537,938556,839
Events in quadrant B3,491,010572,607
Events in quadrant C3,182,971562,852
Events in quadrant D3,682,389539,527

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01784334
B01420817
C01344324
D01493828

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62882453.896310%
B6291831.319345%
C6287631.002068%
D6287921.463337%

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 7568 6298 99 99 1.31% 1.57%
B 7568 6298 5 5 0.07% 0.08%
C 7568 6296 1 1 0.01% 0.02%
D 7568 6297 43 43 0.57% 0.68%

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 8 15 750712 4533.36 828 814 165.4
A 15 223 281877 1699.11 828 814 165.4
A 8 5 190188 1144.82 828 814 165.4
B 0 214 93266 594.11 835 817 155.6
B 4 239 66579 422.61 835 817 155.6
B 11 51 61409 389.39 835 817 155.6
C 4 175 11406 57.36 810 817 184.6
C 0 207 10923 54.74 810 817 184.6
C 13 61 5990 28.02 810 817 184.6
D 8 195 240457 1162.54 804 787 206.2
D 5 222 143818 693.78 804 787 206.2
D 1 52 88391 424.93 804 787 206.2

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