ASTROSAT CZTI

Data Quality Report

Orbit 47390

Creation date: 2024-07-03T07:07:59.450301
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_093T25_9000006324_47390cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47390cztM0_level2_quad_clean.evt
Size (bytes)482,417,280110,010,240
Size460.1 MB 104.9 MB
Events in quadrant A7,406,891721,292
Events in quadrant B3,341,210761,301
Events in quadrant C3,089,016721,220
Events in quadrant D3,499,183659,024

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267923
B0145592
C0141182
D0153552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67193294.896562%
B6719691.026939%
C6719110.163715%
D67191141.696681%

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 7699 6719 133 133 1.73% 1.98%
B 7699 6720 9 9 0.12% 0.13%
C 7699 6719 4 4 0.05% 0.06%
D 7699 6720 96 96 1.25% 1.43%

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 3784626 23863.29 760 743 158.6
A 9 191 602663 3796.04 760 743 158.6
A 15 235 75238 469.8 760 743 158.6
B 0 198 75715 490.4 771 747 152.9
B 5 32 64460 416.77 771 747 152.9
B 0 190 36161 231.66 771 747 152.9
C 0 207 142628 798.88 753 756 177.6
C 3 233 10269 53.57 753 756 177.6
C 13 61 4941 23.57 753 756 177.6
D 2 249 419066 2199.79 746 723 190.2
D 13 23 54624 283.43 746 723 190.2
D 7 38 48605 251.78 746 723 190.2

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