ASTROSAT CZTI

Data Quality Report

Orbit 14107

Creation date: 2024-06-27T16:50:39.450343
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/AS1G08_028T01_9000002080_14107cztM0_level2.evt modeM0/AS1G08_028T01_9000002080_14107cztM0_level2_quad_clean.evt
Size (bytes)446,088,96090,210,240
Size425.4 MB 86.0 MB
Events in quadrant A3,141,444573,780
Events in quadrant B3,558,135573,818
Events in quadrant C3,168,382567,405
Events in quadrant D3,188,726552,282

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135442
B0146681
C0135361
D0138541

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6668520.779844%
B66681291.934613%
C6668360.539892%
D6668490.734853%

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 7574 6670 0 0 0.00% 0.00%
B 7574 6670 58 58 0.77% 0.87%
C 7574 6670 0 0 0.00% 0.00%
D 7574 6670 8 8 0.11% 0.12%

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 12 96 7480 40.42 812 792 165.5
A 0 226 7169 38.54 812 792 165.5
A 8 15 7063 37.9 812 792 165.5
B 10 16 248051 1603.65 803 784 154.2
B 0 85 61312 392.55 803 784 154.2
B 0 189 54330 347.27 803 784 154.2
C 3 233 101521 549.82 783 787 183.2
C 8 128 9402 47.02 783 787 183.2
C 13 61 5595 26.24 783 787 183.2
D 10 172 120465 641.58 782 763 186.6
D 2 152 48110 253.77 782 763 186.6
D 2 234 21629 111.84 782 763 186.6

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