ASTROSAT CZTI

Data Quality Report

Orbit 43012

Creation date: 2024-06-27T22:46:53.886150
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_148T01_9000005838_43012cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43012cztM0_level2_quad_clean.evt
Size (bytes)406,275,84096,716,160
Size387.5 MB 92.2 MB
Events in quadrant A2,929,269709,228
Events in quadrant B4,548,250659,714
Events in quadrant C2,457,438679,081
Events in quadrant D4,721,438535,337

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117442
B0168532
C0100772
D0174012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4919240.487904%
B492051410.447154%
C492050.101626%
D492070014.227642%

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 7043 4920 11 11 0.16% 0.22%
B 7044 4921 422 422 5.99% 8.58%
C 7044 4921 1 1 0.01% 0.02%
D 7044 4921 668 668 9.48% 13.57%

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 564236 4358.62 594 583 129.3
A 15 237 61081 467.82 594 583 129.3
A 13 6 13621 100.82 594 583 129.3
B 0 186 1730001 14583.82 577 566 118.6
B 4 171 370248 3117.42 577 566 118.6
B 4 81 95323 799.06 577 566 118.6
C 15 214 200243 1419.32 575 581 140.7
C 7 220 9361 62.41 575 581 140.7
C 1 241 4145 25.34 575 581 140.7
D 12 233 1648834 11845.16 538 524 139.2
D 1 52 362041 2597.95 538 524 139.2
D 10 118 244611 1754.07 538 524 139.2

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