ASTROSAT CZTI

Data Quality Report

Orbit 48593

Creation date: 2024-09-22T09:49:25.931776
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/AS1A13_037T01_9000006436_48593cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48593cztM0_level2_quad_clean.evt
Size (bytes)443,056,320102,810,240
Size422.5 MB 98.0 MB
Events in quadrant A6,671,496664,074
Events in quadrant B3,715,601711,336
Events in quadrant C2,669,232682,120
Events in quadrant D2,851,112612,478

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243743
B0155843
C0129213
D0135003

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63502323.653543%
B6350901.417323%
C6350100.157480%
D6350200.314961%

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 7505 6352 62 62 0.83% 0.98%
B 7505 6352 22 22 0.29% 0.35%
C 7505 6352 1 1 0.01% 0.02%
D 7505 6352 17 17 0.23% 0.27%

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 10 83 3947932 28072.72 677 662 140.6
A 12 189 38982 272.53 677 662 140.6
A 7 3 36365 253.92 677 662 140.6
B 12 16 902265 6689.15 687 665 134.8
B 0 183 97735 720.18 687 665 134.8
B 12 111 17200 122.68 687 665 134.8
C 12 249 11865 69.96 677 681 159.9
C 12 250 8962 51.8 677 681 159.9
C 14 67 6626 37.19 677 681 159.9
D 2 249 143514 857.75 666 644 166.6
D 13 171 82738 492.87 666 644 166.6
D 2 234 29366 172.44 666 644 166.6

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