ASTROSAT CZTI

Data Quality Report

Orbit 46289

Creation date: 2024-06-27T23:21:19.799562
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_072T02_9000006194_46289cztM0_level2.fits modeM0/AS1A13_072T02_9000006194_46289cztM0_level2_quad_clean.evt
Size (bytes)588,660,480119,453,760
Size561.4 MB 113.9 MB
Events in quadrant A6,565,649783,189
Events in quadrant B6,032,741790,661
Events in quadrant C3,794,386809,795
Events in quadrant D4,807,615704,316

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245222
B0235362
C0167512
D0198512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76065707.494084%
B76076808.939135%
C76072833.720258%
D76076338.321283%

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 8696 7609 0 0 0.00% 0.00%
B 8697 7610 81 81 0.93% 1.06%
C 8697 7610 24 24 0.28% 0.32%
D 8697 7610 318 318 3.66% 4.18%

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 10 83 2977087 15531.7 916 892 191.6
A 9 191 17257 85.4 916 892 191.6
A 13 254 11952 57.72 916 892 191.6
B 3 112 1954540 10743.25 900 870 181.9
B 4 171 387579 2126.52 900 870 181.9
B 0 190 69263 376.09 900 870 181.9
C 1 3 131202 592.24 921 928 220.0
C 12 2 51526 230.02 921 928 220.0
C 14 67 16446 70.55 921 928 220.0
D 13 249 1157637 5136.79 887 858 225.2
D 1 52 88802 390.52 887 858 225.2
D 5 171 78187 343.39 887 858 225.2

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