ASTROSAT CZTI

Data Quality Report

Orbit 48307

Creation date: 2024-09-06T13:25:14.768702
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_029T01_9000006422_48307cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48307cztM0_level2_quad_clean.evt
Size (bytes)623,059,200131,224,320
Size594.2 MB 125.1 MB
Events in quadrant A8,729,176867,004
Events in quadrant B4,074,634909,920
Events in quadrant C3,763,609862,826
Events in quadrant D5,857,512759,926

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0315700
B0179460
C0171890
D0231687

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82473894.716867%
B8248500.606208%
C8248210.254607%
D82474425.359525%

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 8247 8247 59 59 0.72% 0.72%
B 8248 8248 10 10 0.12% 0.12%
C 8248 8248 6 6 0.07% 0.07%
D 8247 8247 296 296 3.59% 3.59%

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 4813299 24360.9 934 912 197.5
A 13 248 134628 676.89 934 912 197.5
A 0 247 129880 652.85 934 912 197.5
B 4 21 118095 628.1 943 914 186.6
B 5 255 101823 540.88 943 914 186.6
B 0 197 32897 171.43 943 914 186.6
C 0 207 65728 294.29 923 929 220.2
C 12 2 41500 184.26 923 929 220.2
C 14 254 36220 160.28 923 929 220.2
D 12 128 1094103 4687.36 906 876 233.2
D 12 2 339942 1453.79 906 876 233.2
D 2 249 175854 750.24 906 876 233.2

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