ASTROSAT CZTI

Data Quality Report

Orbit 08320

Creation date: 2024-06-27T15:30:55.835239
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/AS1A03_093T01_9000001156_08320cztM0_level2.evt modeM0/AS1A03_093T01_9000001156_08320cztM0_level2_quad_clean.evt
Size (bytes)433,713,60065,583,360
Size413.6 MB 62.5 MB
Events in quadrant A3,111,503384,912
Events in quadrant B3,261,453394,410
Events in quadrant C3,064,108383,729
Events in quadrant D3,258,017371,222

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133173
B0136772
C0132942
D0140582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6468310.479283%
B6468570.881262%
C6468380.587508%
D6468871.345083%

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 7648 6469 2 2 0.03% 0.03%
B 7648 6469 3 3 0.04% 0.05%
C 7648 6468 0 0 0.00% 0.00%
D 7648 6469 45 45 0.59% 0.70%

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 13 248 17340 101.77 802 785 162.7
A 0 226 7672 42.34 802 785 162.7
A 12 194 7131 39.01 802 785 162.7
B 0 214 65427 419.29 815 797 154.1
B 4 81 20381 127.05 815 797 154.1
B 0 219 17138 106.01 815 797 154.1
C 9 54 7701 38.12 782 787 181.4
C 13 61 6067 29.11 782 787 181.4
C 8 128 4199 18.81 782 787 181.4
D 1 52 172644 859.0 773 756 200.1
D 13 105 60348 297.81 773 756 200.1
D 2 14 37910 185.67 773 756 200.1

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