ASTROSAT CZTI

Data Quality Report

Orbit 03892

Creation date: 2024-06-27T14:34:52.770532
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_239T02_9000000496_03892cztM0_level2.evt modeM0/AS1G05_239T02_9000000496_03892cztM0_level2_quad_clean.evt
Size (bytes)744,166,08052,614,720
Size709.7 MB 50.2 MB
Events in quadrant A5,241,350305,844
Events in quadrant B3,406,969333,131
Events in quadrant C10,113,511187,508
Events in quadrant D3,331,493307,285

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199823
B0141642
C0343782
D0144052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65684336.592570%
B6568781.187576%
C6568289244.031669%
D6568610.928745%

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 7828 6568 278 278 3.55% 4.23%
B 7828 6568 3 3 0.04% 0.05%
C 7827 6567 2739 2739 34.99% 41.71%
D 7828 6568 31 31 0.40% 0.47%

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 8 15 1245270 7690.72 797 782 161.8
A 13 251 498837 3077.89 797 782 161.8
A 0 199 213821 1316.54 797 782 161.8
B 15 204 105236 659.51 831 813 158.3
B 4 81 43211 267.78 831 813 158.3
B 7 221 33795 208.31 831 813 158.3
C 2 53 7665105 52784.57 624 627 145.2
C 13 61 5292 32.13 624 627 145.2
C 10 65 5196 31.47 624 627 145.2
D 13 239 100747 530.79 774 752 188.4
D 13 223 73317 385.19 774 752 188.4
D 1 20 61747 323.77 774 752 188.4

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
Veto Counter