ASTROSAT CZTI

Data Quality Report

Orbit 44271

Creation date: 2024-06-27T23:01:35.591414
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_080T06_9000005982_44271cztM0_level2.fits modeM0/AS1A13_080T06_9000005982_44271cztM0_level2_quad_clean.evt
Size (bytes)310,815,36047,747,520
Size296.4 MB 45.5 MB
Events in quadrant A4,775,747272,607
Events in quadrant B1,860,112352,615
Events in quadrant C1,293,123334,287
Events in quadrant D3,345,235274,824

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162760
B075270
C061200
D0120230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A296278926.637407%
B2962391.316678%
C296350.168748%
D296342414.309821%

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 2962 2962 818 818 27.62% 27.62%
B 2962 2962 29 29 0.98% 0.98%
C 2963 2963 3 3 0.10% 0.10%
D 2963 2963 417 417 14.07% 14.07%

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 15 223 2852873 46696.41 288 283 61.1
A 10 83 730078 11946.62 288 283 61.1
A 7 3 27691 448.66 288 283 61.1
B 4 173 116242 1859.01 321 313 62.4
B 0 189 94712 1513.76 321 313 62.4
B 0 200 72257 1153.68 321 313 62.4
C 3 233 37275 515.23 304 306 71.8
C 14 254 35386 488.9 304 306 71.8
C 12 250 24645 339.21 304 306 71.8
D 1 52 1216263 16424.62 290 279 74.0
D 5 235 288139 3888.2 290 279 74.0
D 12 1 249993 3372.95 290 279 74.0

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