ASTROSAT CZTI

Data Quality Report

Orbit 02964

Creation date: 2024-06-27T14:22:47.535088
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/AS1G05_238T04_9000000416_02964cztM0_level2.evt modeM0/AS1G05_238T04_9000000416_02964cztM0_level2_quad_clean.evt
Size (bytes)369,953,28043,735,680
Size352.8 MB 41.7 MB
Events in quadrant A2,469,680245,000
Events in quadrant B2,715,162241,454
Events in quadrant C2,412,516240,186
Events in quadrant D3,250,139230,203

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109553
B0115752
C0108482
D0133202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5240210.400763%
B5240561.068702%
C524060.114504%
D52401242.366412%

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 7395 5241 8 8 0.11% 0.15%
B 7395 5241 37 37 0.50% 0.71%
C 7395 5241 4 4 0.05% 0.08%
D 7395 5241 83 83 1.12% 1.58%

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 0 50 97483 815.84 582 570 118.8
A 8 15 41659 345.89 582 570 118.8
A 7 144 37915 314.38 582 570 118.8
B 14 50 103725 907.73 587 573 113.6
B 3 27 89159 779.55 587 573 113.6
B 15 85 49233 428.2 587 573 113.6
C 1 192 82562 626.16 559 560 131.0
C 6 80 53058 400.87 559 560 131.0
C 0 219 34959 262.67 559 560 131.0
D 1 239 188567 1431.49 552 538 131.4
D 12 1 180394 1369.27 552 538 131.4
D 2 136 159074 1206.96 552 538 131.4

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