ASTROSAT CZTI

Data Quality Report

Orbit 11058

Creation date: 2024-06-27T16:07:39.944414
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/AS1C03_006T01_9000001608_11058cztM0_level2.evt modeM0/AS1C03_006T01_9000001608_11058cztM0_level2_quad_clean.evt
Size (bytes)593,225,28062,305,920
Size565.7 MB 59.4 MB
Events in quadrant A6,110,579358,443
Events in quadrant B4,305,375371,857
Events in quadrant C3,158,138372,639
Events in quadrant D3,966,433344,872

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221763
B0167612
C0131582
D0156642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A628096315.334395%
B62802784.426752%
C6280460.732484%
D62802253.582803%

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 7595 6281 693 693 9.12% 11.03%
B 7595 6281 123 123 1.62% 1.96%
C 7595 6281 0 0 0.00% 0.00%
D 7595 6281 146 146 1.92% 2.32%

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 14 238 2971120 18943.95 778 764 156.8
A 15 174 139742 886.36 778 764 156.8
A 11 29 7579 43.46 778 764 156.8
B 4 239 1013012 6553.55 825 808 154.5
B 12 111 17142 105.76 825 808 154.5
B 15 204 16879 104.05 825 808 154.5
C 13 61 5938 27.67 809 815 185.1
C 14 67 2834 10.9 809 815 185.1
C 3 202 2099 6.93 809 815 185.1
D 13 152 388711 2053.53 790 769 188.9
D 8 195 187485 988.36 790 769 188.9
D 11 129 155274 817.86 790 769 188.9

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