ASTROSAT CZTI

Data Quality Report

Orbit 06629

Creation date: 2024-06-27T15:09:29.644020
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/AS1A02_082T01_9000000898_06629cztM0_level2.evt modeM0/AS1A02_082T01_9000000898_06629cztM0_level2_quad_clean.evt
Size (bytes)509,777,28087,027,840
Size486.2 MB 83.0 MB
Events in quadrant A3,011,421561,809
Events in quadrant B3,162,351568,995
Events in quadrant C2,956,015553,306
Events in quadrant D5,879,924509,942

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130703
B0133602
C0129832
D0219742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6325230.363636%
B6325260.411067%
C632580.126482%
D63253235.106719%

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 7650 6326 0 0 0.00% 0.00%
B 7650 6326 1 1 0.01% 0.02%
C 7650 6326 0 0 0.00% 0.00%
D 7650 6326 190 190 2.48% 3.00%

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 8 15 43807 275.79 770 757 156.1
A 0 226 7258 41.65 770 757 156.1
A 12 194 7170 41.08 770 757 156.1
B 0 219 98662 660.57 781 763 148.2
B 4 81 18229 117.85 781 763 148.2
B 12 111 15614 100.21 781 763 148.2
C 12 4 10551 55.77 755 761 175.6
C 13 61 6004 29.86 755 761 175.6
C 3 202 1917 6.58 755 761 175.6
D 8 195 1588751 8919.27 732 711 178.0
D 2 16 1112773 6245.93 732 711 178.0
D 2 33 164683 920.95 732 711 178.0

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