ASTROSAT CZTI

Data Quality Report

Orbit 48113

Creation date: 2024-08-21T03:05:59.659194
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/AS1T05_223T01_9000006402_48113cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48113cztM0_level2_quad_clean.evt
Size (bytes)536,595,84075,827,520
Size511.7 MB 72.3 MB
Events in quadrant A6,795,887688,763
Events in quadrant B1,073,029108
Events in quadrant C2,681,593703,813
Events in quadrant D8,822,335468,563

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244031
B066281
C0126121
D0305121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62343054.892525%
B6235623499.983962%
C623470.112287%
D6234191730.750722%

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 7474 6234 94 94 1.26% 1.51%
B 7474 6234 1 1 0.01% 0.02%
C 7474 6235 0 0 0.00% 0.00%
D 7474 6235 1976 1976 26.44% 31.69%

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 4075260 28358.93 693 679 143.7
A 7 3 26054 176.61 693 679 143.7
A 13 254 13457 88.93 693 679 143.7
B 2 177 862281 81463.9 43 41 10.6
B 4 21 20249 1909.24 43 41 10.6
B 4 171 4965 465.22 43 41 10.6
C 3 233 9889 57.9 684 687 158.9
C 13 61 4689 25.18 684 687 158.9
C 14 67 4112 21.55 684 687 158.9
D 2 37 3778990 25738.71 590 573 146.8
D 2 165 1613850 10989.7 590 573 146.8
D 7 67 845124 5753.11 590 573 146.8

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