ASTROSAT CZTI

Data Quality Report

Orbit 44430

Creation date: 2024-06-27T23:03:31.246107
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_072T03_9000006000_44430cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44430cztM0_level2_quad_clean.evt
Size (bytes)385,983,36099,406,080
Size368.1 MB 94.8 MB
Events in quadrant A4,157,734672,195
Events in quadrant B2,756,979697,445
Events in quadrant C3,026,493659,000
Events in quadrant D3,899,730580,133

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174831
B0119442
C0128851
D0154811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5749921.600278%
B5749581.008871%
C5749851.478518%
D57492694.679075%

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 6960 5751 3 3 0.04% 0.05%
B 6960 5751 7 7 0.10% 0.12%
C 6960 5751 72 72 1.03% 1.25%
D 6960 5751 212 212 3.05% 3.69%

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 1490604 10633.12 675 662 140.1
A 10 248 33798 236.48 675 662 140.1
A 0 243 20014 138.11 675 662 140.1
B 5 172 47474 357.57 668 650 131.0
B 0 229 27203 202.77 668 650 131.0
B 0 168 26260 195.57 668 650 131.0
C 2 14 348678 2261.43 655 660 153.9
C 3 233 62776 403.63 655 660 153.9
C 14 254 48197 308.9 655 660 153.9
D 5 222 568909 3476.11 648 627 163.5
D 5 235 249333 1521.31 648 627 163.5
D 13 249 144693 881.23 648 627 163.5

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