ASTROSAT CZTI

Data Quality Report

Orbit 23463

Creation date: 2024-06-27T18:54:39.745807
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/AS1A07_100T02_9000003470_23463cztM0_level2.evt modeM0/AS1A07_100T02_9000003470_23463cztM0_level2_quad_clean.evt
Size (bytes)555,192,00096,937,920
Size529.5 MB 92.4 MB
Events in quadrant A2,982,241678,979
Events in quadrant B3,062,837693,542
Events in quadrant C3,047,337665,818
Events in quadrant D7,340,722503,850

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120441
B0123701
C0123731
D0255221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5611450.801996%
B5610601.069519%
C5611971.728747%
D5611173630.939227%

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 6956 5611 0 0 0.00% 0.00%
B 6955 5610 3 3 0.04% 0.05%
C 6956 5611 0 0 0.00% 0.00%
D 6956 5611 1686 1686 24.24% 30.05%

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 6 16 22015 140.94 766 751 150.9
A 13 254 9412 57.41 766 751 150.9
A 3 1 9184 55.9 766 751 150.9
B 0 228 44761 314.07 759 740 140.2
B 12 111 15325 104.06 759 740 140.2
B 0 229 14049 94.95 759 740 140.2
C 14 238 119596 689.78 749 754 172.3
C 3 233 5743 28.96 749 754 172.3
C 13 61 5198 25.79 749 754 172.3
D 7 238 3534802 22351.63 658 640 158.1
D 1 52 1187983 7509.29 658 640 158.1
D 12 233 78630 493.24 658 640 158.1

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