ASTROSAT CZTI

Data Quality Report

Orbit 42732

Creation date: 2024-06-27T22:43:34.189137
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/AS1A05_013T01_9000005822_42732cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42732cztM0_level2_quad_clean.evt
Size (bytes)589,337,28076,057,920
Size562.0 MB 72.5 MB
Events in quadrant A2,899,565601,565
Events in quadrant B2,425,295609,831
Events in quadrant C7,820,769411,506
Events in quadrant D8,252,108303,777

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117682
B0109992
C0268352
D0282742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5370110.204842%
B5370160.297952%
C5369174032.408270%
D5369249246.414602%

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 7133 5371 7 7 0.10% 0.13%
B 7133 5371 9 9 0.13% 0.17%
C 7132 5370 1754 1754 24.59% 32.66%
D 7131 5368 2357 2357 33.05% 43.91%

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 582344 4757.71 591 580 122.3
A 13 6 11597 90.1 591 580 122.3
A 13 248 11589 90.03 591 580 122.3
B 5 172 37086 323.54 586 571 112.9
B 0 230 19064 163.86 586 571 112.9
B 0 229 18044 154.82 586 571 112.9
C 8 79 5735900 50959.42 481 485 112.5
C 15 214 188289 1668.65 481 485 112.5
C 3 233 16629 143.44 481 485 112.5
D 2 249 6446486 61046.68 427 416 105.6
D 1 52 38464 360.33 427 416 105.6
D 7 96 31734 296.59 427 416 105.6

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