ASTROSAT CZTI

Data Quality Report

Orbit 38919

Creation date: 2024-06-27T21:58:09.230270
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/AS1T05_064T01_9000005416_38919cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38919cztM0_level2_quad_clean.evt
Size (bytes)1,265,296,320243,336,960
Size1.2 GB 232.1 MB
Events in quadrant A9,591,8341,702,072
Events in quadrant B7,201,2971,753,002
Events in quadrant C7,332,5431,684,325
Events in quadrant D21,501,3071,147,591

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03200
B03200
C03200
D03200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0450

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380975
B0322044
C0315924
D0747164

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156521540.983900%
B15652520.332226%
C15652100.063890%
D15652412826.373626%

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 19830 15655 111 111 0.56% 0.71%
B 19830 15655 31 31 0.16% 0.20%
C 19830 15655 4 4 0.02% 0.03%
D 19830 15654 4077 4077 20.56% 26.04%

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 12 16 1153558 3305.3 1725 1689 348.5
A 10 83 1097619 3144.78 1725 1689 348.5
A 13 248 359106 1025.61 1725 1689 348.5
B 5 200 155931 471.9 1717 1671 326.9
B 0 230 76947 230.28 1717 1671 326.9
B 5 172 49964 147.74 1717 1671 326.9
C 15 214 654604 1662.71 1693 1703 392.7
C 12 249 46981 115.31 1693 1703 392.7
C 3 233 21615 50.71 1693 1703 392.7
D 2 250 4540229 12471.25 1499 1459 363.9
D 1 52 3518695 9664.37 1499 1459 363.9
D 12 235 2667517 7325.57 1499 1459 363.9

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