ASTROSAT CZTI

Data Quality Report

Orbit 47054

Creation date: 2024-06-27T23:31:11.136539
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_005T01_9000006296_47054cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47054cztM0_level2_quad_clean.evt
Size (bytes)522,152,640116,398,080
Size498.0 MB 111.0 MB
Events in quadrant A6,783,291777,144
Events in quadrant B4,655,787785,807
Events in quadrant C3,195,142782,433
Events in quadrant D4,173,642711,428

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01362
B01362
C01360
D01362

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024769354
B018335158
C014303150
D017080176

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67142503.723563%
B67173294.898020%
C6718761.131289%
D67171311.950275%

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 7866 6716 37 37 0.47% 0.55%
B 7870 6720 148 148 1.88% 2.20%
C 7868 6719 21 21 0.27% 0.31%
D 7868 6719 73 73 0.93% 1.09%

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 3502174 21986.93 778 763 159.2
A 13 248 252701 1582.03 778 763 159.2
A 13 254 12180 71.69 778 763 159.2
B 5 172 859657 5907.98 760 739 145.4
B 3 112 599132 4115.99 760 739 145.4
B 5 32 73184 498.31 760 739 145.4
C 14 254 167855 926.56 773 776 180.3
C 12 250 7893 39.47 773 776 180.3
C 13 61 5103 24.0 773 776 180.3
D 1 52 640305 3350.82 771 747 190.9
D 13 249 264972 1384.35 771 747 190.9
D 1 47 89406 464.51 771 747 190.9

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