ASTROSAT CZTI

Data Quality Report

Orbit 44203

Creation date: 2024-06-27T23:00:29.492259
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_074T09_9000005968_44203cztM0_level2.fits modeM0/AS1A13_074T09_9000005968_44203cztM0_level2_quad_clean.evt
Size (bytes)593,340,480131,636,160
Size565.9 MB 125.5 MB
Events in quadrant A5,898,171885,225
Events in quadrant B4,670,658909,832
Events in quadrant C4,168,109877,103
Events in quadrant D6,589,515742,582

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234483
B0196211
C0182181
D0254131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82151631.984175%
B82161441.752678%
C8216460.559883%
D82167098.629503%

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 8215 8215 57 57 0.69% 0.69%
B 8216 8216 65 65 0.79% 0.79%
C 8216 8216 28 28 0.34% 0.34%
D 8216 8216 533 533 6.49% 6.49%

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 1696548 8658.02 932 911 195.8
A 15 223 516311 2631.66 932 911 195.8
A 10 248 32361 160.59 932 911 195.8
B 0 219 290867 1567.65 932 905 185.0
B 5 172 229853 1237.79 932 905 185.0
B 0 200 139885 751.38 932 905 185.0
C 3 233 239132 1090.06 919 926 218.5
C 4 254 190928 869.47 919 926 218.5
C 14 254 101088 458.35 919 926 218.5
D 12 16 1042904 4658.07 878 851 223.7
D 13 249 799232 3568.83 878 851 223.7
D 1 52 518367 2313.34 878 851 223.7

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