ASTROSAT CZTI

Data Quality Report

Orbit 13143

Creation date: 2024-06-27T16:36:53.058311
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/AS1T02_011T01_9000001940_13143cztM0_level2.evt modeM0/AS1T02_011T01_9000001940_13143cztM0_level2_quad_clean.evt
Size (bytes)504,838,08099,688,320
Size481.5 MB 95.1 MB
Events in quadrant A3,128,462659,504
Events in quadrant B5,388,478616,140
Events in quadrant C2,985,236677,150
Events in quadrant D3,364,290631,461

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131983
B0200532
C0128012
D0141372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6219190.305515%
B621997515.677762%
C6219100.160798%
D6219240.385914%

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 7540 6221 1 1 0.01% 0.02%
B 7540 6221 579 579 7.68% 9.31%
C 7540 6221 0 0 0.00% 0.00%
D 7540 6221 14 14 0.19% 0.23%

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 12 189 107006 691.51 763 747 153.7
A 4 2 25659 162.12 763 747 153.7
A 0 23 18853 117.83 763 747 153.7
B 4 239 2239739 16987.24 710 693 131.8
B 0 85 249997 1891.42 710 693 131.8
B 4 173 41346 308.43 710 693 131.8
C 13 61 5468 26.58 765 771 176.7
C 8 222 2477 9.66 765 771 176.7
C 3 202 1988 6.89 765 771 176.7
D 1 52 198812 1122.56 747 729 176.5
D 12 221 178632 1008.2 747 729 176.5
D 8 195 63945 358.25 747 729 176.5

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