ASTROSAT CZTI

Data Quality Report

Orbit 46147

Creation date: 2024-06-27T23:19:41.472981
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_098T02_9000006174_46147cztM0_level2.fits modeM0/AS1A13_098T02_9000006174_46147cztM0_level2_quad_clean.evt
Size (bytes)598,236,480116,876,160
Size570.5 MB 111.5 MB
Events in quadrant A6,467,923763,140
Events in quadrant B5,629,998783,247
Events in quadrant C3,683,374792,601
Events in quadrant D5,781,971677,258

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235930
B0216960
C0161710
D0224250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75062733.637090%
B75074846.447316%
C7507670.892500%
D75076098.112428%

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 7506 7506 0 0 0.00% 0.00%
B 7507 7507 142 142 1.89% 1.89%
C 7507 7507 27 27 0.36% 0.36%
D 7507 7507 450 450 5.99% 5.99%

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 3024289 16593.53 857 834 182.2
A 14 235 91433 497.23 857 834 182.2
A 9 191 17293 90.33 857 834 182.2
B 3 112 2177505 12674.5 852 822 171.7
B 0 199 33497 190.26 852 822 171.7
B 12 111 22332 125.25 852 822 171.7
C 12 2 165532 807.84 852 855 203.8
C 14 254 111584 543.19 852 855 203.8
C 12 249 48800 235.2 852 855 203.8
D 5 235 1678208 8044.66 823 796 208.5
D 1 52 379879 1818.04 823 796 208.5
D 13 171 196081 936.56 823 796 208.5

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