ASTROSAT CZTI

Data Quality Report

Orbit 46595

Creation date: 2024-06-27T23:25:15.299597
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_092T08_9000006236_46595cztM0_level2.fits modeM0/AS1A13_092T08_9000006236_46595cztM0_level2_quad_clean.evt
Size (bytes)285,007,68056,436,480
Size271.8 MB 53.8 MB
Events in quadrant A3,319,732378,160
Events in quadrant B1,841,218396,626
Events in quadrant C1,770,911379,760
Events in quadrant D3,344,172305,112

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121220
B077920
C077360
D0123490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35101073.048433%
B3510561.595442%
C3510411.168091%
D351054715.584046%

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 3510 3510 1 1 0.03% 0.03%
B 3510 3510 1 1 0.03% 0.03%
C 3510 3510 32 32 0.91% 0.91%
D 3510 3510 383 383 10.91% 10.91%

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 1556195 17128.34 429 418 90.8
A 9 191 67317 736.53 429 418 90.8
A 2 79 10286 108.64 429 418 90.8
B 5 172 31223 349.3 429 417 88.2
B 15 201 25460 283.96 429 417 88.2
B 10 128 19310 214.22 429 417 88.2
C 14 254 76173 746.73 420 421 101.4
C 12 2 31257 303.97 420 421 101.4
C 1 3 10817 102.48 420 421 101.4
D 1 52 639371 6218.08 398 384 102.8
D 2 249 519644 5053.0 398 384 102.8
D 11 224 340907 3313.68 398 384 102.8

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