ASTROSAT CZTI

Data Quality Report

Orbit 17560

Creation date: 2024-06-27T17:37:59.722414
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/AS1A05_012T02_9000002602_17560cztM0_level2.evt modeM0/AS1A05_012T02_9000002602_17560cztM0_level2_quad_clean.evt
Size (bytes)588,504,96079,179,840
Size561.2 MB 75.5 MB
Events in quadrant A6,540,200454,038
Events in quadrant B3,468,186501,077
Events in quadrant C3,518,020480,922
Events in quadrant D3,824,709476,494

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240792
B0146752
C0145672
D0159782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6961119117.109611%
B69621231.766734%
C69621522.183281%
D69622082.987647%

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 7796 6961 867 867 11.12% 12.46%
B 7797 6962 0 0 0.00% 0.00%
C 7797 6962 9 9 0.12% 0.13%
D 7797 6962 85 85 1.09% 1.22%

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 14 237 3408184 21567.52 794 776 158.0
A 15 174 39373 244.3 794 776 158.0
A 11 47 31403 193.86 794 776 158.0
B 7 220 29718 178.32 851 831 162.0
B 0 230 23199 138.07 851 831 162.0
B 0 189 22968 136.65 851 831 162.0
C 3 233 143145 749.68 816 819 189.8
C 14 238 126562 662.33 816 819 189.8
C 0 207 40976 211.52 816 819 189.8
D 13 189 257867 1281.59 831 806 200.6
D 7 238 140776 697.83 831 806 200.6
D 5 222 83387 411.71 831 806 200.6

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