ASTROSAT CZTI

Data Quality Report

Orbit 14306

Creation date: 2024-06-27T16:53:10.836989
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/AS1A04_231T01_9000002106_14306cztM0_level2.evt modeM0/AS1A04_231T01_9000002106_14306cztM0_level2_quad_clean.evt
Size (bytes)152,784,00033,292,800
Size145.7 MB 31.8 MB
Events in quadrant A1,053,073211,678
Events in quadrant B1,167,159218,274
Events in quadrant C1,177,928218,238
Events in quadrant D1,085,715209,354

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042660
B046740
C047340
D044160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A206820.096712%
B206880.386847%
C206830.145068%
D206830.145068%

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 2069 2069 0 0 0.00% 0.00%
B 2069 2069 3 3 0.14% 0.14%
C 2069 2069 0 0 0.00% 0.00%
D 2069 2069 1 1 0.05% 0.05%

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 12 189 19103 344.33 265 261 54.7
A 8 15 11946 213.54 265 261 54.7
A 0 226 2464 40.26 265 261 54.7
B 0 229 101711 2028.94 261 256 50.0
B 0 189 34385 682.53 261 256 50.0
B 12 111 5295 100.77 261 256 50.0
C 3 233 156187 2596.11 261 263 60.1
C 13 61 1905 27.34 261 263 60.1
C 10 22 726 7.71 261 263 60.1
D 5 222 54347 867.88 261 256 62.3
D 1 52 16592 262.11 261 256 62.3
D 10 70 11318 177.49 261 256 62.3

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