ASTROSAT CZTI

Data Quality Report

Orbit 10493

Creation date: 2024-06-27T16:00:07.563512
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/AS1G07_057T01_9000001520_10493cztM0_level2.fits modeM0/AS1G07_057T01_9000001520_10493cztM0_level2_quad_clean.evt
Size (bytes)288,509,76088,205,760
Size275.1 MB 84.1 MB
Events in quadrant A2,448,172609,259
Events in quadrant B2,409,883577,905
Events in quadrant C2,352,276599,797
Events in quadrant D3,088,433541,490

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244128
B0244136
C0244131
D0236120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03410
B03713
C03713
D0317

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02445514283
B02884818849
C02525815078
D03169819266

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4915270.549339%
B4563561.227263%
C4937200.405104%
D4985240.481444%

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 7404 5791 0 0 0.00% 0.00%
B 7404 5457 0 0 0.00% 0.00%
C 7402 5813 0 0 0.00% 0.00%
D 7404 5595 0 0 0.00% 0.00%

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 3 80 61669 493.71 608 596 123.7
A 15 239 39636 315.6 608 596 123.7
A 0 226 5630 40.69 608 596 123.7
B 4 239 137160 1266.73 568 556 107.8
B 4 81 23237 210.32 568 556 107.8
B 0 214 20738 187.15 568 556 107.8
C 14 234 22680 160.15 596 599 137.9
C 13 61 4443 27.88 596 599 137.9
C 1 0 2507 13.84 596 599 137.9
D 8 195 673826 4751.61 589 573 141.7
D 1 52 66715 466.81 589 573 141.7
D 12 233 55407 387.0 589 573 141.7

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