ASTROSAT CZTI

Data Quality Report

Orbit 46288

Creation date: 2024-06-27T23:21:19.116829
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_072T02_9000006194_46288cztM0_level2.fits modeM0/AS1A13_072T02_9000006194_46288cztM0_level2_quad_clean.evt
Size (bytes)517,590,720107,297,280
Size493.6 MB 102.3 MB
Events in quadrant A5,589,383718,489
Events in quadrant B5,149,336722,030
Events in quadrant C3,137,248721,485
Events in quadrant D4,772,876627,443

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209871
B0201461
C0139631
D0188711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65832293.478657%
B65833665.559775%
C65831181.792496%
D65845348.110571%

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 7418 6585 0 0 0.00% 0.00%
B 7418 6585 144 144 1.94% 2.19%
C 7418 6585 24 24 0.32% 0.36%
D 7419 6586 460 460 6.20% 6.98%

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 2618173 16533.84 762 745 158.3
A 13 254 10430 61.18 762 745 158.3
A 3 137 8758 50.62 762 745 158.3
B 3 112 1488724 9925.71 749 725 149.9
B 4 171 645375 4300.14 749 725 149.9
B 0 190 39467 258.43 749 725 149.9
C 1 3 101607 561.95 759 762 179.5
C 12 2 54567 299.82 759 762 179.5
C 14 67 12871 67.48 759 762 179.5
D 13 249 1730833 9383.58 739 716 184.4
D 2 249 174168 940.74 739 716 184.4
D 1 52 30822 163.28 739 716 184.4

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