ASTROSAT CZTI

Data Quality Report

Orbit 47572

Creation date: 2024-07-15T15:36:38.620569
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/AS1C09_002T01_9000006334_47572cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47572cztM0_level2_quad_clean.evt
Size (bytes)2,091,153,600283,066,560
Size1.9 GB 270.0 MB
Events in quadrant A20,786,1332,044,811
Events in quadrant B9,290,4572,135,719
Events in quadrant C8,578,5302,068,195
Events in quadrant D37,223,982954,704

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0756122
B0412552
C0403342
D01242658

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04000
B04000
C04000
D04000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A198266773.414708%
B198261660.837284%
C19827990.499319%
D198261045452.728740%

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 20711 19826 143 143 0.69% 0.72%
B 20711 19827 9 9 0.04% 0.05%
C 20712 19828 2 2 0.01% 0.01%
D 20710 19825 9811 9811 47.37% 49.49%

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 10773397 24057.73 2174 2129 447.7
A 9 191 1281410 2857.29 2174 2129 447.7
A 13 248 250907 555.65 2174 2129 447.7
B 0 200 324646 753.42 2188 2119 428.1
B 0 198 70546 159.84 2188 2119 428.1
B 0 190 69593 157.62 2188 2119 428.1
C 14 254 114507 220.56 2163 2168 509.3
C 3 233 23399 41.68 2163 2168 509.3
C 13 61 14357 23.93 2163 2168 509.3
D 2 165 29086799 66571.04 1732 1672 436.9
D 2 249 496174 1131.83 1732 1672 436.9
D 11 192 289765 659.4 1732 1672 436.9

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