ASTROSAT CZTI

Data Quality Report

Orbit 44962

Creation date: 2024-06-27T23:08:25.476383
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_017T02_9000006032_44962cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44962cztM0_level2_quad_clean.evt
Size (bytes)460,123,200107,487,360
Size438.8 MB 102.5 MB
Events in quadrant A5,214,320712,020
Events in quadrant B3,380,329736,687
Events in quadrant C3,027,035720,398
Events in quadrant D4,890,128618,305

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207201
B0146451
C0138641
D0191681

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67001301.940299%
B67011031.537084%
C6701370.552156%
D67014386.536338%

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 7580 6701 11 11 0.15% 0.16%
B 7581 6702 35 35 0.46% 0.52%
C 7581 6702 11 11 0.15% 0.16%
D 7581 6702 354 354 4.67% 5.28%

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 2252119 14359.48 747 730 156.8
A 13 248 52761 331.86 747 730 156.8
A 7 3 11639 69.58 747 730 156.8
B 4 171 185785 1254.07 744 721 147.6
B 5 255 77768 522.1 744 721 147.6
B 0 219 69692 467.38 744 721 147.6
C 12 250 91784 524.08 737 742 173.7
C 14 254 36153 203.84 737 742 173.7
C 3 233 12020 64.92 737 742 173.7
D 13 249 973434 5365.84 715 694 181.3
D 5 235 222700 1224.63 715 694 181.3
D 13 187 196510 1080.16 715 694 181.3

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