ASTROSAT CZTI

Data Quality Report

Orbit 47608

Creation date: 2024-07-17T23:45:19.306089
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_071T01_9000006340_47608cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47608cztM0_level2_quad_clean.evt
Size (bytes)480,320,64099,161,280
Size458.1 MB 94.6 MB
Events in quadrant A6,856,854660,491
Events in quadrant B3,887,325659,971
Events in quadrant C2,836,374658,462
Events in quadrant D3,719,059591,722

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250374
B0159021
C0129441
D0153671

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61892734.411052%
B61893786.107610%
C6189150.242365%
D61902373.828756%

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 7034 6190 63 63 0.90% 1.02%
B 7034 6190 217 217 3.09% 3.51%
C 7034 6190 0 0 0.00% 0.00%
D 7035 6191 166 166 2.36% 2.68%

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 3537573 24808.68 685 673 142.6
A 9 191 543465 3807.28 685 673 142.6
A 13 248 91653 638.16 685 673 142.6
B 12 48 963804 7300.8 671 651 131.9
B 0 200 156414 1180.7 671 651 131.9
B 0 190 20820 152.88 671 651 131.9
C 3 233 190244 1205.37 670 673 157.3
C 15 208 15352 93.33 670 673 157.3
C 14 254 10981 65.54 670 673 157.3
D 12 2 453177 2753.89 661 639 164.3
D 2 249 199796 1211.96 661 639 164.3
D 13 171 129461 783.94 661 639 164.3

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