ASTROSAT CZTI

Data Quality Report

Orbit 45696

Creation date: 2024-06-27T23:15:10.248714
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_028T01_9000006122_45696cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45696cztM0_level2_quad_clean.evt
Size (bytes)740,969,280106,424,640
Size706.6 MB 101.5 MB
Events in quadrant A6,364,642793,740
Events in quadrant B3,628,861805,400
Events in quadrant C11,598,319420,290
Events in quadrant D5,270,867694,768

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238600
B0158570
C0394070
D0206590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72991181.616660%
B7299901.233046%
C7299354048.499794%
D72993234.425264%

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 7299 7299 16 16 0.22% 0.22%
B 7299 7299 53 53 0.73% 0.73%
C 7299 7299 3590 3590 49.18% 49.18%
D 7299 7299 283 283 3.88% 3.88%

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 3071930 17788.49 825 807 172.6
A 13 248 77059 441.67 825 807 172.6
A 0 243 17950 99.3 825 807 172.6
B 12 18 155328 953.15 822 797 162.1
B 3 112 70046 427.13 822 797 162.1
B 5 172 40695 246.09 822 797 162.1
C 9 54 8782979 57363.34 644 647 153.1
C 14 254 201225 1310.11 644 647 153.1
C 3 233 78168 506.34 644 647 153.1
D 1 52 1455953 7186.72 797 770 202.5
D 2 249 255380 1257.44 797 770 202.5
D 13 171 116633 572.21 797 770 202.5

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