ASTROSAT CZTI

Data Quality Report

Orbit 14222

Creation date: 2024-06-27T16:52:06.509341
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/AS1G08_084T01_9000002100_14222cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14222cztM0_level2_quad_clean.evt
Size (bytes)1,306,909,440270,642,240
Size1.2 GB 258.1 MB
Events in quadrant A8,767,1381,776,997
Events in quadrant B10,073,5401,776,266
Events in quadrant C9,138,4361,714,040
Events in quadrant D10,363,2821,668,065

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0379875
B0420964
C0381774
D0429924

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18308500.273105%
B183085082.774743%
C18308340.185711%
D183082081.136115%

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 20419 18312 3 3 0.01% 0.02%
B 20419 18312 236 236 1.16% 1.29%
C 20419 18312 0 0 0.00% 0.00%
D 20419 18312 158 158 0.77% 0.86%

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 8 15 270516 626.72 2134 2089 428.3
A 12 189 193976 448.02 2134 2089 428.3
A 9 143 51916 116.34 2134 2089 428.3
B 0 182 1017443 2520.02 2124 2067 402.9
B 0 229 360833 890.41 2124 2067 402.9
B 4 97 143368 350.69 2124 2067 402.9
C 3 233 1043660 2180.15 2070 2078 477.8
C 13 61 14988 27.02 2070 2078 477.8
C 14 234 12653 22.13 2070 2078 477.8
D 8 195 907744 1751.52 2044 1993 517.1
D 5 222 697341 1344.64 2044 1993 517.1
D 12 110 316169 607.54 2044 1993 517.1

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