ASTROSAT CZTI

Data Quality Report

Orbit 42182

Creation date: 2024-06-27T22:37:49.844230
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/AS1A11_032T04_9000005766_42182cztM0_level2.fits modeM0/AS1A11_032T04_9000005766_42182cztM0_level2_quad_clean.evt
Size (bytes)1,056,732,480293,083,200
Size1007.8 MB 279.5 MB
Events in quadrant A9,752,7831,961,934
Events in quadrant B8,862,2311,998,609
Events in quadrant C8,329,7481,920,111
Events in quadrant D10,772,9811,749,109

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0396055
B0390615
C0363195
D0449995

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0490
B0500
C0510
D0510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180581090.603611%
B180582771.533946%
C1805790.049842%
D180573611.999225%

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 44719 18062 74 74 0.17% 0.41%
B 44719 18062 213 213 0.48% 1.18%
C 44718 18061 0 0 0.00% 0.00%
D 44718 18061 355 355 0.79% 1.97%

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 1697141 4213.71 1969 1930 402.3
A 15 222 181593 446.58 1969 1930 402.3
A 15 223 95402 232.34 1969 1930 402.3
B 3 112 582885 1553.07 1944 1887 374.1
B 0 229 262604 696.93 1944 1887 374.1
B 5 255 212029 561.73 1944 1887 374.1
C 15 214 751655 1677.5 1923 1935 446.9
C 0 207 50770 109.27 1923 1935 446.9
C 7 220 24998 51.6 1923 1935 446.9
D 1 52 1035413 2201.53 1917 1861 469.5
D 12 233 540670 1147.7 1917 1861 469.5
D 10 199 287509 608.45 1917 1861 469.5

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