ASTROSAT CZTI

Data Quality Report

Orbit 04503

Creation date: 2024-06-27T14:43:02.149421
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_083T03_9000000566_04503cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04503cztM0_level2_quad_clean.evt
Size (bytes)564,036,48075,911,040
Size537.9 MB 72.4 MB
Events in quadrant A3,957,376462,624
Events in quadrant B5,761,302446,013
Events in quadrant C3,360,494468,803
Events in quadrant D3,547,121452,600

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161253
B0216302
C0146162
D0152332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67174196.237904%
B671778411.671877%
C67171852.754206%
D67182043.036618%

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 7692 6718 185 185 2.41% 2.75%
B 7692 6718 378 378 4.91% 5.63%
C 7692 6718 14 14 0.18% 0.21%
D 7693 6719 30 30 0.39% 0.45%

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 0 118 597902 3569.03 810 793 167.3
A 0 13 94707 561.34 810 793 167.3
A 0 47 67932 401.3 810 793 167.3
B 10 16 2346808 15186.03 800 781 154.5
B 15 204 237908 1534.94 800 781 154.5
B 4 48 34296 216.95 800 781 154.5
C 9 247 219921 1202.0 791 795 182.3
C 12 4 15270 79.4 791 795 182.3
C 14 48 15162 78.81 791 795 182.3
D 13 235 142514 744.07 793 770 190.5
D 9 101 137569 718.11 793 770 190.5
D 14 34 135219 705.78 793 770 190.5

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