ASTROSAT CZTI

Data Quality Report

Orbit 29439

Creation date: 2024-06-27T20:04:07.860978
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/AS1A10_102T05_9000004232_29439cztM0_level2.evt modeM0/AS1A10_102T05_9000004232_29439cztM0_level2_quad_clean.evt
Size (bytes)361,261,44050,063,040
Size344.5 MB 47.7 MB
Events in quadrant A1,839,620318,973
Events in quadrant B2,225,456329,676
Events in quadrant C3,235,128310,318
Events in quadrant D3,389,323295,214

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077401
B089581
C0122411
D0126701

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3696180.487013%
B3696782.110390%
C36971965.301596%
D36973088.331079%

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 4696 3697 0 0 0.00% 0.00%
B 4696 3697 12 12 0.26% 0.32%
C 4697 3698 3 3 0.06% 0.08%
D 4697 3698 201 201 4.28% 5.44%

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 13 254 6428 61.79 474 464 96.5
A 3 137 4742 44.32 474 464 96.5
A 1 113 4311 39.86 474 464 96.5
B 10 245 302880 3290.17 470 458 91.9
B 5 255 43893 472.55 470 458 91.9
B 0 190 14927 157.41 470 458 91.9
C 3 233 1398009 13164.4 450 451 106.2
C 14 238 72401 677.74 450 451 106.2
C 2 114 8811 78.75 450 451 106.2
D 1 52 524259 4812.69 448 437 108.8
D 13 104 457159 4196.2 448 437 108.8
D 13 153 288470 2646.35 448 437 108.8

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