ASTROSAT CZTI

Data Quality Report

Orbit 48125

Creation date: 2024-08-21T20:06:37.376694
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_223T01_9000006402_48125cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48125cztM0_level2_quad_clean.evt
Size (bytes)396,492,48074,963,520
Size378.1 MB 71.5 MB
Events in quadrant A6,330,277629,575
Events in quadrant B1,029,286101
Events in quadrant C2,589,239645,091
Events in quadrant D4,253,439574,867

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232481
B063921
C0123351
D0167581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60142484.123711%
B6015601399.966750%
C6015430.714879%
D60152764.588529%

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 7039 6014 69 69 0.98% 1.15%
B 7039 6014 0 0 0.00% 0.00%
C 7040 6015 12 12 0.17% 0.20%
D 7040 6015 272 272 3.86% 4.52%

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 3641019 26916.91 649 634 135.2
A 13 248 159006 1171.0 649 634 135.2
A 7 3 16541 117.62 649 634 135.2
B 2 177 830221 76401.58 43 42 10.9
B 4 21 11840 1085.77 43 42 10.9
B 4 171 9943 911.19 43 42 10.9
C 12 250 51605 337.77 645 649 150.9
C 14 67 6503 38.8 645 649 150.9
C 9 237 4671 26.66 645 649 150.9
D 7 67 1508455 9434.02 639 617 159.8
D 2 165 60544 374.94 639 617 159.8
D 10 234 42364 261.2 639 617 159.8

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