ASTROSAT CZTI

Data Quality Report

Orbit 48169

Creation date: 2024-08-26T08:56:00.663324
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/AS1C09_004T05_9000006408_48169cztM0_level2.fits modeM0/AS1C09_004T05_9000006408_48169cztM0_level2_quad_clean.evt
Size (bytes)388,480,32076,682,880
Size370.5 MB 73.1 MB
Events in quadrant A6,749,257650,789
Events in quadrant B1,015,40239,501
Events in quadrant C2,594,143630,265
Events in quadrant D3,557,786587,673

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240741
B062901
C0120941
D0146621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58733295.601907%
B58745874100.000000%
C5874410.697991%
D58741402.383384%

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 6948 5874 120 120 1.73% 2.04%
B 6948 5873 0 0 0.00% 0.00%
C 6949 5875 3 3 0.04% 0.05%
D 6949 5875 79 79 1.14% 1.34%

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 3996709 30253.72 636 624 132.1
A 13 248 256750 1939.09 636 624 132.1
A 0 243 12377 88.98 636 624 132.1
B 2 177 812346 79956.81 40 39 10.2
B 0 200 21420 2104.57 40 39 10.2
B 4 21 5816 568.64 40 39 10.2
C 12 2 42937 285.92 633 636 147.9
C 12 249 29878 197.65 633 636 147.9
C 11 16 22127 145.26 633 636 147.9
D 2 165 540839 3384.51 637 616 159.6
D 12 1 265102 1657.01 637 616 159.6
D 7 67 56823 352.14 637 616 159.6

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