ASTROSAT CZTI

Data Quality Report

Orbit 47172

Creation date: 2024-06-27T23:32:27.177134
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/AS1C09_003T01_9000006298_47172cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47172cztM0_level2_quad_clean.evt
Size (bytes)1,059,353,280259,634,880
Size1010.3 MB 247.6 MB
Events in quadrant A15,629,7331,736,109
Events in quadrant B8,113,1851,800,751
Events in quadrant C6,693,9491,690,551
Events in quadrant D7,561,6521,550,428

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0571463
B0349233
C0320603
D0342743

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03180
B03180
C03180
D03180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A157144712.997327%
B157142591.648212%
C15714360.229095%
D157151470.935412%

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 19234 15716 38 38 0.20% 0.24%
B 19234 15717 97 97 0.50% 0.62%
C 19234 15717 6 6 0.03% 0.04%
D 19235 15718 101 101 0.53% 0.64%

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 8738930 24476.46 1745 1710 357.0
A 14 254 53653 145.51 1745 1710 357.0
A 9 191 39983 107.22 1745 1710 357.0
B 4 21 503969 1503.46 1745 1697 334.1
B 0 200 364682 1086.53 1745 1697 334.1
B 4 171 132239 390.75 1745 1697 334.1
C 14 254 41722 102.99 1691 1698 388.6
C 3 233 26969 65.03 1691 1698 388.6
C 1 3 18739 43.85 1691 1698 388.6
D 2 249 301344 714.47 1698 1644 419.5
D 1 47 192855 455.84 1698 1644 419.5
D 12 233 170872 403.43 1698 1644 419.5

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