ASTROSAT CZTI

Data Quality Report

Orbit 29228

Creation date: 2024-06-27T20:01:45.534714
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/AS1A10_102T02_9000004200_29228cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29228cztM0_level2_quad_clean.evt
Size (bytes)220,596,48018,789,120
Size210.4 MB 17.9 MB
Events in quadrant A1,019,494110,628
Events in quadrant B1,284,587108,896
Events in quadrant C2,535,990101,329
Events in quadrant D1,698,79497,742

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042481
B052081
C090021
D064281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A205930.145702%
B2060452.184466%
C206031815.436893%
D206021910.631068%

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 2059 2059 0 0 0.00% 0.00%
B 2060 2060 18 18 0.87% 0.87%
C 2060 2060 40 40 1.94% 1.94%
D 2060 2060 121 121 5.87% 5.87%

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 13 254 4560 80.43 262 258 53.5
A 0 13 3756 65.4 262 258 53.5
A 3 137 2460 41.17 262 258 53.5
B 0 229 109930 2173.47 257 250 50.5
B 0 189 91676 1811.74 257 250 50.5
B 0 183 38000 748.07 257 250 50.5
C 3 233 1526168 26060.69 246 248 58.6
C 14 238 40255 683.27 246 248 58.6
C 2 114 5235 85.17 246 248 58.6
D 1 52 540341 9022.23 246 239 59.9
D 8 195 115042 1917.75 246 239 59.9
D 12 233 33316 552.54 246 239 59.9

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