ASTROSAT CZTI

Data Quality Report

Orbit 07163

Creation date: 2024-06-27T15:16:22.974039
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/AS1A02_175T01_9000000976_07163cztM0_level2.evt modeM0/AS1A02_175T01_9000000976_07163cztM0_level2_quad_clean.evt
Size (bytes)504,630,72084,438,720
Size481.3 MB 80.5 MB
Events in quadrant A3,328,922531,249
Events in quadrant B3,270,189555,340
Events in quadrant C3,084,466540,996
Events in quadrant D5,165,624483,272

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139733
B0137132
C0132402
D0195332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6384540.845865%
B6384450.704887%
C6384340.532581%
D63844757.440476%

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 8899 6385 23 23 0.26% 0.36%
B 8899 6385 5 5 0.06% 0.08%
C 8899 6386 4 4 0.04% 0.06%
D 8899 6385 416 416 4.67% 6.52%

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 14 238 259895 1632.19 777 760 158.8
A 8 15 66654 415.04 777 760 158.8
A 0 226 7447 42.12 777 760 158.8
B 0 219 72470 478.21 795 777 149.9
B 4 81 49164 322.75 795 777 149.9
B 0 214 48399 317.65 795 777 149.9
C 4 254 64737 356.11 766 771 179.6
C 9 68 19724 105.51 766 771 179.6
C 14 67 7479 37.34 766 771 179.6
D 14 34 887790 4840.7 736 713 183.3
D 2 216 733705 3999.87 736 713 183.3
D 2 14 247963 1349.22 736 713 183.3

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