ASTROSAT CZTI

Data Quality Report

Orbit 09509

Creation date: 2024-06-27T15:47:02.494272
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/AS1G05_230T06_9000001350_09509cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09509cztM0_level2_quad_clean.evt
Size (bytes)242,553,60048,850,560
Size231.3 MB 46.6 MB
Events in quadrant A1,971,168305,003
Events in quadrant B1,680,159328,714
Events in quadrant C1,634,263330,277
Events in quadrant D1,848,402295,698

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163938508
B0134596620
C0130246150
D0156498372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012765
B012862
C013062
D012965

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255
B0259
C0259
D0256

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2921782.670318%
B3119461.474832%
C3216401.243781%
D2971481.615618%

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 7452 3801 0 0 0.00% 0.00%
B 7458 4000 0 0 0.00% 0.00%
C 7460 4089 0 0 0.00% 0.00%
D 7454 3861 5 5 0.07% 0.13%

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 8 5 254091 3123.83 398 391 81.2
A 1 162 87951 1078.13 398 391 81.2
A 1 178 35742 435.28 398 391 81.2
B 0 214 22865 277.32 418 409 81.0
B 0 219 14726 176.81 418 409 81.0
B 0 229 9376 110.74 418 409 81.0
C 13 61 3169 28.41 417 420 96.8
C 12 4 3167 28.39 417 420 96.8
C 8 222 2414 20.6 417 420 96.8
D 1 52 184467 1894.78 388 377 97.2
D 8 195 112203 1150.99 388 377 97.2
D 12 233 39915 406.95 388 377 97.2

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