ASTROSAT CZTI

Data Quality Report

Orbit 46013

Creation date: 2024-06-27T23:18:46.445216
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/AS1A13_033T01_9000006152_46013cztM0_level2.fits modeM0/AS1A13_033T01_9000006152_46013cztM0_level2_quad_clean.evt
Size (bytes)631,589,760106,888,320
Size602.3 MB 101.9 MB
Events in quadrant A5,942,223729,946
Events in quadrant B7,544,983693,352
Events in quadrant C4,968,309668,172
Events in quadrant D4,393,044666,980

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022266201
B027535292
C019882292
D018259175

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68451942.834186%
B685199914.581813%
C685278711.485698%
D68722243.259604%

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 7665 6911 21 21 0.27% 0.30%
B 7665 6904 734 734 9.58% 10.63%
C 7665 6884 629 629 8.21% 9.14%
D 7666 6909 167 167 2.18% 2.42%

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 10 83 2881978 17945.35 769 752 160.6
A 13 248 84656 522.59 769 752 160.6
A 13 254 11207 65.12 769 752 160.6
B 3 112 4537995 30720.29 746 724 147.7
B 12 111 19172 124.91 746 724 147.7
B 10 246 17709 115.0 746 724 147.7
C 14 254 2038887 12029.92 714 717 169.4
C 12 250 70484 411.79 714 717 169.4
C 12 2 56329 328.24 714 717 169.4
D 1 52 799059 4249.71 755 732 187.9
D 2 249 477597 2538.48 755 732 187.9
D 13 249 57644 302.96 755 732 187.9

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