ASTROSAT CZTI

Data Quality Report

Orbit 14024

Creation date: 2024-06-27T16:49:17.234392
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/AS1G08_064T01_9000002070_14024cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14024cztM0_level2_quad_clean.evt
Size (bytes)152,654,40043,467,840
Size145.6 MB 41.5 MB
Events in quadrant A1,028,892300,299
Events in quadrant B1,042,259299,241
Events in quadrant C1,039,715293,173
Events in quadrant D1,373,808277,918

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042820
B043510
C042270
D054610

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200110.049975%
B200130.149925%
C200120.099950%
D2001472.348826%

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 2002 2002 0 0 0.00% 0.00%
B 2002 2002 0 0 0.00% 0.00%
C 2002 2002 0 0 0.00% 0.00%
D 2002 2002 29 29 1.45% 1.45%

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 10006 180.16 263 257 54.1
A 2 79 4160 72.13 263 257 54.1
A 0 226 2386 39.34 263 257 54.1
B 3 209 14071 278.82 256 251 49.6
B 0 189 12098 239.02 256 251 49.6
B 10 16 7948 155.29 256 251 49.6
C 3 233 48606 821.54 254 256 58.9
C 13 61 1836 26.85 254 256 58.9
C 3 203 635 6.44 254 256 58.9
D 10 157 134975 2055.48 252 247 65.5
D 8 195 125330 1908.33 252 247 65.5
D 13 189 85279 1297.29 252 247 65.5

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