ASTROSAT CZTI

Data Quality Report

Orbit 09418

Creation date: 2024-06-27T15:46:06.279208
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/AS1G07_030T01_9000001338_09418cztM0_level2.evt modeM0/AS1G07_030T01_9000001338_09418cztM0_level2_quad_clean.evt
Size (bytes)591,312,96062,858,880
Size563.9 MB 59.9 MB
Events in quadrant A3,959,716371,860
Events in quadrant B3,091,267381,115
Events in quadrant C7,334,034346,861
Events in quadrant D3,094,931362,834

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01326
B01324
C01322
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016705794
B013674467
C0270841040
D014023567

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0131
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62721522.423469%
B6356871.368785%
C6272136721.795281%
D6333821.294805%

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 7632 6528 31 31 0.41% 0.47%
B 7629 6553 1 1 0.01% 0.02%
C 7632 6534 1047 1047 13.72% 16.02%
D 7632 6539 10 10 0.13% 0.15%

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 5 798677 5050.41 779 762 158.0
A 4 2 137991 868.59 779 762 158.0
A 1 162 14638 87.83 779 762 158.0
B 12 111 17349 108.52 791 773 152.7
B 11 111 14267 88.34 791 773 152.7
B 8 234 12907 79.44 791 773 152.7
C 4 254 4724990 30943.73 659 662 152.7
C 10 22 21904 139.13 659 662 152.7
C 9 68 8785 53.2 659 662 152.7
D 10 172 76851 394.86 757 739 192.8
D 8 195 49291 251.88 757 739 192.8
D 2 136 40719 207.41 757 739 192.8

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