ASTROSAT CZTI

Data Quality Report

Orbit 43219

Creation date: 2024-06-27T22:49:27.410229
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/AS1A09_036T17_9000005858_43219cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43219cztM0_level2_quad_clean.evt
Size (bytes)188,830,08036,910,080
Size180.1 MB 35.2 MB
Events in quadrant A1,893,219239,040
Events in quadrant B1,077,625257,404
Events in quadrant C1,146,773247,440
Events in quadrant D2,681,900199,680

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071301
B049521
C050111
D096651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A24211707.021892%
B242130.123916%
C242190.371747%
D242144018.174308%

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 2421 2421 120 120 4.96% 4.96%
B 2421 2421 2 2 0.08% 0.08%
C 2421 2421 6 6 0.25% 0.25%
D 2421 2421 388 388 16.03% 16.03%

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 15 237 442885 8162.4 254 248 54.2
A 10 83 313799 5782.01 254 248 54.2
A 13 248 74383 1367.08 254 248 54.2
B 0 186 25612 494.42 258 252 51.3
B 0 189 19708 379.32 258 252 51.3
B 12 111 6311 118.13 258 252 51.3
C 15 214 103767 1707.21 250 251 60.6
C 14 254 65713 1079.61 250 251 60.6
C 13 61 1634 22.81 250 251 60.6
D 1 52 1514284 25351.71 236 229 59.7
D 12 16 66597 1111.28 236 229 59.7
D 13 249 46762 779.16 236 229 59.7

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