ASTROSAT CZTI

Data Quality Report

Orbit 44977

Creation date: 2024-06-27T23:08:39.427286
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_044T01_9000006034_44977cztM0_level2.fits modeM0/AS1A13_044T01_9000006034_44977cztM0_level2_quad_clean.evt
Size (bytes)477,146,880108,368,640
Size455.0 MB 103.3 MB
Events in quadrant A5,351,531721,883
Events in quadrant B3,683,084742,676
Events in quadrant C2,993,804715,148
Events in quadrant D5,118,796638,859

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208931
B0152851
C0135902
D0197981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66401332.003012%
B66411712.574913%
C6640360.542169%
D66402864.307229%

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 7630 6641 11 11 0.14% 0.17%
B 7631 6642 60 60 0.79% 0.90%
C 7630 6641 3 3 0.04% 0.05%
D 7630 6641 215 215 2.82% 3.24%

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 2320847 14792.56 756 739 156.8
A 7 3 54331 341.69 756 739 156.8
A 13 248 37032 231.4 756 739 156.8
B 5 255 391586 2611.18 754 729 149.7
B 4 171 118675 787.96 754 729 149.7
B 0 183 37233 243.87 754 729 149.7
C 1 3 50723 287.06 742 745 174.1
C 14 254 14997 81.86 742 745 174.1
C 3 233 11206 60.09 742 745 174.1
D 11 241 1020836 5605.03 730 708 182.0
D 13 249 538081 2952.56 730 708 182.0
D 5 171 275354 1509.02 730 708 182.0

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