ASTROSAT CZTI

Data Quality Report

Orbit 46182

Creation date: 2024-06-27T23:20:04.048293
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_093T40_9000006182_46182cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46182cztM0_level2_quad_clean.evt
Size (bytes)539,458,560107,697,600
Size514.5 MB 102.7 MB
Events in quadrant A5,887,847726,108
Events in quadrant B3,729,862744,937
Events in quadrant C3,225,384716,986
Events in quadrant D6,620,066617,074

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215261
B0151391
C0140581
D0242321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65311542.357985%
B6532941.439069%
C6532260.398040%
D65326479.905083%

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 7571 6531 6 6 0.08% 0.09%
B 7572 6533 36 36 0.48% 0.55%
C 7572 6533 15 15 0.20% 0.23%
D 7572 6533 525 525 6.93% 8.04%

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 2988791 19701.26 735 719 151.7
A 15 254 19160 121.59 735 719 151.7
A 13 248 17875 113.11 735 719 151.7
B 3 112 615821 4376.35 728 706 140.6
B 15 201 98089 692.85 728 706 140.6
B 5 172 86949 613.59 728 706 140.6
C 14 254 182254 1086.91 715 719 167.0
C 3 233 142671 849.91 715 719 167.0
C 12 2 83107 493.28 715 719 167.0
D 1 52 2667774 15170.84 698 675 175.8
D 2 249 576361 3274.58 698 675 175.8
D 2 37 275023 1560.53 698 675 175.8

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