ASTROSAT CZTI

Data Quality Report

Orbit 11017

Creation date: 2024-06-27T16:07:06.671520
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_046T09_9000001600_11017cztM0_level2.evt modeM0/AS1G08_046T09_9000001600_11017cztM0_level2_quad_clean.evt
Size (bytes)767,770,56085,504,320
Size732.2 MB 81.5 MB
Events in quadrant A10,749,070409,225
Events in quadrant B4,471,003578,093
Events in quadrant C3,017,367580,395
Events in quadrant D4,561,402553,176

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036715149
B01777924
C0137417
D01795950

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6689311746.598894%
B67054386.532438%
C6710510.760060%
D66992653.955814%

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 7543 6706 2630 2630 34.87% 39.22%
B 7543 6714 245 245 3.25% 3.65%
C 7543 6714 0 0 0.00% 0.00%
D 7543 6712 183 183 2.43% 2.73%

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 8076455 65113.1 605 592 124.0
A 8 5 309746 2492.61 605 592 124.0
A 15 174 12563 96.52 605 592 124.0
B 4 239 1332789 8888.54 780 760 149.9
B 0 214 37928 248.02 780 760 149.9
B 4 81 26007 168.47 780 760 149.9
C 13 61 5698 27.58 773 778 178.4
C 5 207 2398 9.08 773 778 178.4
C 14 234 2164 7.77 773 778 178.4
D 11 129 511180 2784.59 768 748 183.3
D 10 253 441392 2403.87 768 748 183.3
D 2 14 173697 943.5 768 748 183.3

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