ASTROSAT CZTI

Data Quality Report

Orbit 30483

Creation date: 2024-06-27T20:15:50.358847
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/AS1A10_058T04_9000004382_30483cztM0_level2.evt modeM0/AS1A10_058T04_9000004382_30483cztM0_level2_quad_clean.evt
Size (bytes)527,523,840105,526,080
Size503.1 MB 100.6 MB
Events in quadrant A3,335,551722,146
Events in quadrant B4,830,153718,308
Events in quadrant C3,473,125683,098
Events in quadrant D3,945,392667,843

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136751
B0182061
C0140491
D0155702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57811051.816295%
B57821552.680733%
C57821652.853684%
D57812003.459609%

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 7012 5782 20 20 0.29% 0.35%
B 7013 5783 13 13 0.19% 0.22%
C 7013 5783 0 0 0.00% 0.00%
D 7012 5782 123 123 1.75% 2.13%

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 0 13 165287 1022.19 812 800 160.9
A 4 2 21441 128.27 812 800 160.9
A 8 192 10846 62.43 812 800 160.9
B 6 159 1575140 10620.57 790 774 148.2
B 5 255 49010 325.4 790 774 148.2
B 0 229 47749 316.89 790 774 148.2
C 3 233 351136 2021.09 758 765 173.4
C 14 238 125344 718.62 758 765 173.4
C 10 22 23928 133.61 758 765 173.4
D 7 238 304534 1692.09 773 757 179.5
D 8 195 223957 1243.27 773 757 179.5
D 12 218 163047 903.99 773 757 179.5

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