ASTROSAT CZTI

Data Quality Report

Orbit 05498

Creation date: 2024-06-27T14:55:48.776475
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/AS1A02_063T01_9000000702_05498cztM0_level2.evt modeM0/AS1A02_063T01_9000000702_05498cztM0_level2_quad_clean.evt
Size (bytes)142,280,64030,988,800
Size135.7 MB 29.6 MB
Events in quadrant A851,595206,020
Events in quadrant B1,426,664204,303
Events in quadrant C952,517199,052
Events in quadrant D947,455191,042

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037990
B055460
C040080
D040390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A188430.159236%
B188470.371550%
C1884110.583864%
D188480.424628%

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 1884 1884 0 0 0.00% 0.00%
B 1884 1884 3 3 0.16% 0.16%
C 1884 1884 8 8 0.42% 0.42%
D 1884 1884 6 6 0.32% 0.32%

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 17 7575 160.48 218 214 45.9
A 0 226 2189 43.06 218 214 45.9
A 12 194 2174 42.73 218 214 45.9
B 15 255 451293 10524.11 216 211 42.9
B 15 204 80596 1875.45 216 211 42.9
B 15 54 18679 430.87 216 211 42.9
C 1 241 44811 906.16 209 210 49.2
C 1 16 44226 894.27 209 210 49.2
C 9 247 27549 555.44 209 210 49.2
D 2 152 48028 904.33 211 204 52.9
D 8 195 45125 849.44 211 204 52.9
D 2 33 25914 486.16 211 204 52.9

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