ASTROSAT CZTI

Data Quality Report

Orbit 17315

Creation date: 2024-06-27T17:34:53.952370
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/AS1A05_010T02_9000002556_17315cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17315cztM0_level2_quad_clean.evt
Size (bytes)517,786,560111,551,040
Size493.8 MB 106.4 MB
Events in quadrant A3,600,723726,702
Events in quadrant B3,687,838731,941
Events in quadrant C3,629,374689,157
Events in quadrant D4,229,509684,236

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161102
B0161743
C0160682
D0179092

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7857280.356370%
B7857500.636375%
C7857680.865470%
D7857520.661830%

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 9062 7859 0 0 0.00% 0.00%
B 9062 7859 0 0 0.00% 0.00%
C 9062 7859 0 0 0.00% 0.00%
D 9062 7859 37 37 0.41% 0.47%

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 0 226 8028 37.37 937 917 190.3
A 3 137 7248 33.27 937 917 190.3
A 12 194 6661 30.18 937 917 190.3
B 12 111 22190 118.42 935 911 179.7
B 11 111 19336 102.54 935 911 179.7
B 14 111 16748 88.14 935 911 179.7
C 14 238 135762 640.73 890 894 210.5
C 8 128 8718 37.17 890 894 210.5
C 13 61 6366 26.0 890 894 210.5
D 5 222 412328 1874.19 899 870 219.5
D 11 176 211359 958.78 899 870 219.5
D 1 52 103254 466.36 899 870 219.5

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