ASTROSAT CZTI

Data Quality Report

Orbit 44298

Creation date: 2024-06-27T23:01:46.586426
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/AS1A13_004T13_9000005988_44298cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44298cztM0_level2_quad_clean.evt
Size (bytes)102,150,72025,669,440
Size97.4 MB 24.5 MB
Events in quadrant A1,123,968172,393
Events in quadrant B896,294176,758
Events in quadrant C717,532171,943
Events in quadrant D934,757154,439

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044771
B035071
C029711
D036331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1363654.768892%
B1363715.209098%
C136350.366838%
D1363684.988995%

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 1363 1363 5 5 0.37% 0.37%
B 1363 1363 18 18 1.32% 1.32%
C 1363 1363 3 3 0.22% 0.22%
D 1363 1363 33 33 2.42% 2.42%

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 10 83 410590 10663.51 180 177 38.5
A 15 223 13224 338.99 180 177 38.5
A 0 243 2206 52.72 180 177 38.5
B 5 255 148578 4143.28 176 171 35.8
B 0 190 22035 610.41 176 171 35.8
B 0 229 8489 232.23 176 171 35.8
C 14 254 22941 543.87 172 172 41.9
C 1 3 14710 347.26 172 172 41.9
C 3 233 7670 179.09 172 172 41.9
D 5 235 84555 1859.36 173 167 45.4
D 13 249 71350 1568.41 173 167 45.4
D 1 52 34046 746.47 173 167 45.4

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