ASTROSAT CZTI

Data Quality Report

Orbit 44983

Creation date: 2024-10-09T16:16:20.372957
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/AS1A13_074T07_9000006036_44983cztM0_level2.fits modeM0/AS1A13_074T07_9000006036_44983cztM0_level2_quad_clean.evt
Size (bytes)613,728,000109,091,520
Size585.3 MB 104.0 MB
Events in quadrant A5,596,265757,286
Events in quadrant B3,596,911790,586
Events in quadrant C3,117,257761,790
Events in quadrant D9,899,544536,649

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216193
B0148712
C0137082
D0340042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65612744.176193%
B65611342.042372%
C6561290.442006%
D6561184828.166438%

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 7691 6562 15 15 0.20% 0.23%
B 7691 6562 24 24 0.31% 0.37%
C 7691 6562 2 2 0.03% 0.03%
D 7691 6562 1610 1610 20.93% 24.54%

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 2456207 14888.79 790 775 164.9
A 0 243 43427 258.62 790 775 164.9
A 7 3 21669 126.69 790 775 164.9
B 4 171 93192 586.98 794 770 157.5
B 5 255 69078 433.83 794 770 157.5
B 0 155 57863 362.6 794 770 157.5
C 14 254 24021 125.39 784 792 185.3
C 3 233 12495 63.17 784 792 185.3
C 15 208 12404 62.68 784 792 185.3
D 13 249 2168830 12195.32 702 683 177.8
D 11 241 1748161 9829.16 702 683 177.8
D 13 187 1337653 7520.14 702 683 177.8

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