ASTROSAT CZTI

Data Quality Report

Orbit 46354

Creation date: 2024-06-27T23:22:08.410228
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/AS1A13_070T05_9000006198_46354cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46354cztM0_level2_quad_clean.evt
Size (bytes)534,640,320106,859,520
Size509.9 MB 101.9 MB
Events in quadrant A6,768,035698,252
Events in quadrant B3,401,653747,603
Events in quadrant C2,982,267719,241
Events in quadrant D6,116,234600,946

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245241
B0146451
C0137451
D0228571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67363545.255344%
B67361482.197150%
C6737450.667953%
D673775511.206769%

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 7686 6737 95 95 1.24% 1.41%
B 7686 6737 31 31 0.40% 0.46%
C 7687 6738 0 0 0.00% 0.00%
D 7687 6738 511 511 6.65% 7.58%

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 10 83 3220401 20413.65 753 736 157.7
A 13 248 319834 2023.18 753 736 157.7
A 15 223 263412 1665.45 753 736 157.7
B 5 172 103046 681.38 765 744 150.1
B 8 234 77769 513.02 765 744 150.1
B 15 201 72182 475.81 765 744 150.1
C 4 254 16339 87.91 754 757 177.2
C 12 249 14284 76.32 754 757 177.2
C 3 233 9542 49.56 754 757 177.2
D 1 52 1484197 8298.56 711 691 178.8
D 5 235 1462479 8177.08 711 691 178.8
D 13 249 152588 849.69 711 691 178.8

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