ASTROSAT CZTI

Data Quality Report

Orbit 05979

Creation date: 2024-06-27T15:01:26.086879
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_086T01_9000000774_05979cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05979cztM0_level2_quad_clean.evt
Size (bytes)393,480,000115,064,640
Size375.3 MB 109.7 MB
Events in quadrant A2,759,012764,497
Events in quadrant B2,990,938784,460
Events in quadrant C2,743,764767,434
Events in quadrant D2,987,858723,044

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130002
B0133731
C0130221
D0137811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6394180.281514%
B6394300.469190%
C6394170.265874%
D6394791.235533%

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 7569 6395 0 0 0.00% 0.00%
B 7569 6395 2 2 0.03% 0.03%
C 7569 6395 6 6 0.08% 0.09%
D 7569 6395 49 49 0.65% 0.77%

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 8 192 13069 85.53 709 692 144.7
A 4 2 9043 57.71 709 692 144.7
A 0 226 6687 41.43 709 692 144.7
B 4 81 87511 634.86 722 704 136.7
B 4 48 26057 185.42 722 704 136.7
B 15 204 25097 178.4 722 704 136.7
C 1 241 18113 109.47 692 695 159.1
C 1 16 11323 66.8 692 695 159.1
C 9 54 7474 42.61 692 695 159.1
D 2 63 207369 1236.55 678 654 167.2
D 6 112 104570 621.61 678 654 167.2
D 8 195 61619 364.69 678 654 167.2

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