ASTROSAT CZTI

Data Quality Report

Orbit 05540

Creation date: 2024-06-27T14:56:28.495074
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/AS1G06_084T01_9000000710_05540cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05540cztM0_level2_quad_clean.evt
Size (bytes)458,893,44065,744,640
Size437.6 MB 62.7 MB
Events in quadrant A3,169,178376,011
Events in quadrant B3,528,805380,846
Events in quadrant C3,393,007388,981
Events in quadrant D3,350,903377,546

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013962124
B014663100
C01448897
D014668109

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01362
B01360
C01362
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6689971.450142%
B67061031.535938%
C67071101.640078%
D67121051.564362%

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 7771 6749 1 1 0.01% 0.01%
B 7771 6749 0 0 0.00% 0.00%
C 7771 6749 12 12 0.15% 0.18%
D 7771 6748 24 24 0.31% 0.36%

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 7 16 49933 297.3 810 790 165.3
A 12 194 8002 43.63 810 790 165.3
A 0 226 7642 41.45 810 790 165.3
B 15 204 276617 1727.65 822 803 159.6
B 11 51 21227 127.93 822 803 159.6
B 0 219 21225 127.92 822 803 159.6
C 9 16 106951 574.81 794 797 184.7
C 1 16 86981 466.68 794 797 184.7
C 1 241 57593 307.55 794 797 184.7
D 2 152 134882 692.01 794 773 193.8
D 2 33 77531 396.08 794 773 193.8
D 2 136 55742 283.64 794 773 193.8

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