ASTROSAT CZTI

Data Quality Report

Orbit 13651

Creation date: 2024-06-27T16:44:04.063313
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/AS1G08_083T03_9000002022_13651cztM0_level2.evt modeM0/AS1G08_083T03_9000002022_13651cztM0_level2_quad_clean.evt
Size (bytes)466,744,32076,680,000
Size445.1 MB 73.1 MB
Events in quadrant A3,282,074467,420
Events in quadrant B3,422,135475,709
Events in quadrant C3,388,947466,548
Events in quadrant D3,593,067451,164

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137703
B0141372
C0140032
D0145492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66141041.572422%
B66141111.678258%
C6614911.375869%
D66141011.527064%

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 7640 6616 0 0 0.00% 0.00%
B 7640 6616 2 2 0.03% 0.03%
C 7640 6616 2 2 0.03% 0.03%
D 7640 6616 9 9 0.12% 0.14%

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 1 162 9268 48.88 849 831 172.6
A 15 69 8349 43.55 849 831 172.6
A 0 226 7414 38.14 849 831 172.6
B 0 219 26118 156.38 848 828 161.7
B 0 214 23940 142.91 848 828 161.7
B 12 111 18992 112.32 848 828 161.7
C 3 233 152260 794.64 828 832 190.6
C 14 234 9701 46.54 828 832 190.6
C 13 61 6137 27.84 828 832 190.6
D 8 195 292457 1441.83 823 803 202.3
D 5 222 61691 301.01 823 803 202.3
D 2 136 43970 213.4 823 803 202.3

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