ASTROSAT CZTI

Data Quality Report

Orbit 28340

Creation date: 2024-06-27T19:50:40.732678
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_116T01_9000004082_28340cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28340cztM0_level2_quad_clean.evt
Size (bytes)485,496,00097,257,600
Size463.0 MB 92.8 MB
Events in quadrant A3,251,739644,023
Events in quadrant B3,555,069662,596
Events in quadrant C3,203,386613,754
Events in quadrant D4,262,094581,883

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136970
B0146470
C0134570
D0168130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6345400.630418%
B6346921.449732%
C6346711.118815%
D63451852.915682%

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 7605 6346 0 0 0.00% 0.00%
B 7606 6346 29 29 0.38% 0.46%
C 7606 6347 0 0 0.00% 0.00%
D 7605 6346 159 159 2.09% 2.51%

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 15 174 23526 137.47 830 814 165.2
A 12 96 23067 134.69 830 814 165.2
A 13 254 10962 61.42 830 814 165.2
B 10 245 200404 1291.7 828 811 154.5
B 10 246 45703 290.53 828 811 154.5
B 15 32 25702 161.09 828 811 154.5
C 14 238 128148 695.27 787 794 183.2
C 13 61 5236 24.25 787 794 183.2
C 7 247 4243 18.83 787 794 183.2
D 1 52 893586 4855.4 781 762 183.9
D 8 195 267814 1452.29 781 762 183.9
D 2 250 114582 618.98 781 762 183.9

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