ASTROSAT CZTI

Data Quality Report

Orbit 47363

Creation date: 2024-07-01T12:41:44.282613
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_093T17_9000006322_47363cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47363cztM0_level2_quad_clean.evt
Size (bytes)593,432,640125,709,120
Size565.9 MB 119.9 MB
Events in quadrant A8,703,245790,537
Events in quadrant B3,947,263870,024
Events in quadrant C3,650,962836,952
Events in quadrant D5,052,647758,318

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0315501
B0172681
C0165861
D0206631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79096538.256417%
B79091441.820711%
C7910400.505689%
D79101501.896334%

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 7909 7909 282 282 3.57% 3.57%
B 7909 7909 10 10 0.13% 0.13%
C 7910 7910 2 2 0.03% 0.03%
D 7910 7910 84 84 1.06% 1.06%

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 3869277 20472.53 895 874 189.0
A 9 191 672768 3555.83 895 874 189.0
A 15 235 662782 3502.98 895 874 189.0
B 5 255 162293 888.25 913 883 181.7
B 14 167 60019 325.43 913 883 181.7
B 4 171 25646 136.27 913 883 181.7
C 3 233 88122 404.26 906 910 215.7
C 0 207 18491 81.49 906 910 215.7
C 12 250 10349 43.75 906 910 215.7
D 2 165 1086552 4750.27 900 871 228.6
D 2 249 345855 1509.44 900 871 228.6
D 11 224 60338 260.19 900 871 228.6

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