ASTROSAT CZTI

Data Quality Report

Orbit 29387

Creation date: 2024-06-27T20:03:46.549635
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/AS1T03_282T01_9000004226_29387cztM0_level2.evt modeM0/AS1T03_282T01_9000004226_29387cztM0_level2_quad_clean.evt
Size (bytes)366,062,40035,023,680
Size349.1 MB 33.4 MB
Events in quadrant A1,791,401214,209
Events in quadrant B1,758,791218,111
Events in quadrant C2,169,065203,016
Events in quadrant D5,129,751177,732

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074640
B073380
C087790
D0176940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3480250.718391%
B3481110.316001%
C34813159.049124%
D3481104530.020109%

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 3480 3480 19 19 0.55% 0.55%
B 3481 3481 5 5 0.14% 0.14%
C 3481 3481 0 0 0.00% 0.00%
D 3481 3481 882 882 25.34% 25.34%

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 1 113 145582 1716.95 422 414 84.6
A 15 174 16054 184.98 422 414 84.6
A 13 254 7146 79.62 422 414 84.6
B 5 255 56385 715.08 416 408 78.3
B 0 190 25247 317.31 416 408 78.3
B 0 229 12345 152.49 416 408 78.3
C 3 233 304376 3349.09 390 395 90.8
C 14 238 167853 1844.96 390 395 90.8
C 14 254 142575 1566.46 390 395 90.8
D 1 52 2643861 29885.49 364 355 88.5
D 12 227 516131 5830.97 364 355 88.5
D 8 195 177765 2005.66 364 355 88.5

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