ASTROSAT CZTI

Data Quality Report

Orbit 10185

Creation date: 2024-06-27T15:56:05.849270
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/AS1A03_133T01_9000001464_10185cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10185cztM0_level2_quad_clean.evt
Size (bytes)521,879,04088,047,360
Size497.7 MB 84.0 MB
Events in quadrant A3,476,558546,648
Events in quadrant B3,895,585549,291
Events in quadrant C3,375,659551,328
Events in quadrant D4,568,021516,968

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149905
B0160336
C0148526
D0180505

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7211911.261961%
B72101251.733703%
C7210741.026352%
D72112473.425322%

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 9227 7213 21 21 0.23% 0.29%
B 9227 7212 30 30 0.33% 0.42%
C 9227 7212 0 0 0.00% 0.00%
D 9227 7212 157 157 1.70% 2.18%

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 15 223 40337 221.45 880 864 178.2
A 15 239 14649 77.34 880 864 178.2
A 3 1 13891 73.08 880 864 178.2
B 4 239 152982 902.89 880 859 168.5
B 11 51 93536 550.06 880 859 168.5
B 0 214 75165 441.03 880 859 168.5
C 14 67 30091 148.25 857 863 197.2
C 13 61 6365 27.91 857 863 197.2
C 14 234 3311 12.42 857 863 197.2
D 1 52 585723 2658.77 834 817 220.0
D 8 195 294825 1336.45 834 817 220.0
D 4 95 126273 570.28 834 817 220.0

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