ASTROSAT CZTI

Data Quality Report

Orbit 08406

Creation date: 2024-06-27T15:32:24.396847
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/AS1G07_027T01_9000001180_08406cztM0_level2.evt modeM0/AS1G07_027T01_9000001180_08406cztM0_level2_quad_clean.evt
Size (bytes)51,024,96012,752,640
Size48.7 MB 12.2 MB
Events in quadrant A370,77983,855
Events in quadrant B380,30985,414
Events in quadrant C357,81485,551
Events in quadrant D390,08978,973

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015026
B0158114
C014423
D015417

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62810.159236%
B62650.798722%
C63010.158730%
D629121.907790%

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 631 630 0 0 0.00% 0.00%
B 631 631 0 0 0.00% 0.00%
C 631 631 0 0 0.00% 0.00%
D 632 632 9 9 1.42% 1.42%

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 5 16 22324 1076.78 90 88 20.7
A 0 226 862 37.48 90 88 20.7
A 12 194 765 32.78 90 88 20.7
B 0 214 13160 673.42 92 90 19.4
B 0 198 2745 136.8 92 90 19.4
B 0 219 2008 98.82 92 90 19.4
C 12 4 729 27.63 91 92 23.1
C 13 61 611 22.52 91 92 23.1
C 7 159 406 13.62 91 92 23.1
D 7 71 35423 1489.16 88 85 23.7
D 12 221 8363 348.84 88 85 23.7
D 1 52 5170 214.28 88 85 23.7

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