ASTROSAT CZTI

Data Quality Report

Orbit 08610

Creation date: 2024-06-27T15:34:56.292799
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/AS1A03_036T01_9000001204_08610cztM0_level2.evt modeM0/AS1A03_036T01_9000001204_08610cztM0_level2_quad_clean.evt
Size (bytes)451,768,32095,097,600
Size430.8 MB 90.7 MB
Events in quadrant A2,915,786613,089
Events in quadrant B4,107,234624,995
Events in quadrant C2,869,088622,002
Events in quadrant D3,361,961580,777

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130503
B0164622
C0128802
D0142742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6292140.222505%
B62923545.626192%
C629260.095359%
D62921091.732359%

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 7552 6293 5 5 0.07% 0.08%
B 7552 6293 297 297 3.93% 4.72%
C 7552 6293 0 0 0.00% 0.00%
D 7552 6293 90 90 1.19% 1.43%

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 15 63 34020 225.04 735 720 148.0
A 5 16 21876 142.97 735 720 148.0
A 15 174 19132 124.42 735 720 148.0
B 10 16 992820 7254.94 730 714 136.7
B 0 214 105353 765.19 730 714 136.7
B 10 246 50987 367.63 730 714 136.7
C 8 128 6250 32.87 730 734 167.8
C 14 67 5580 28.88 730 734 167.8
C 13 61 5559 28.75 730 734 167.8
D 12 233 187224 1079.58 715 696 172.8
D 2 136 104803 602.55 715 696 172.8
D 7 71 74710 428.37 715 696 172.8

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