ASTROSAT CZTI

Data Quality Report

Orbit 00380

Creation date: 2024-06-27T13:59:11.211913
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/AS1P01_161T05_9000000058_00380cztM0_level2.evt modeM0/AS1P01_161T05_9000000058_00380cztM0_level2_quad_clean.evt
Size (bytes)778,936,32043,850,880
Size742.9 MB 41.8 MB
Events in quadrant A5,685,264255,751
Events in quadrant B5,642,889242,009
Events in quadrant C5,640,204251,285
Events in quadrant D6,291,002229,647

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204403
B0202932
C0202432
D0222992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A496540.080564%
B496550.100705%
C4965370.745217%
D49652655.337362%

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 7181 4966 96 96 1.34% 1.93%
B 7181 4966 52 52 0.72% 1.05%
C 7181 4966 102 102 1.42% 2.05%
D 7181 4966 507 507 7.06% 10.21%

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 0 238 65315 204.74 1414 1401 312.2
A 0 69 64601 202.45 1414 1401 312.2
A 12 150 49899 155.36 1414 1401 312.2
B 0 230 30487 86.77 1440 1444 334.7
B 5 46 18670 51.47 1440 1444 334.7
B 0 207 14040 37.63 1440 1444 334.7
C 10 107 158602 418.91 1336 1383 375.3
C 1 1 158460 418.54 1336 1383 375.3
C 3 159 40766 104.94 1336 1383 375.3
D 7 85 986626 2488.93 1246 1293 395.9
D 13 7 294371 740.31 1246 1293 395.9
D 12 0 48078 118.18 1246 1293 395.9

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