ASTROSAT CZTI

Data Quality Report

Orbit 29299

Creation date: 2024-06-27T20:02:31.633006
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_050T01_9000004212_29299cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29299cztM0_level2_quad_clean.evt
Size (bytes)837,720,00069,402,240
Size798.9 MB 66.2 MB
Events in quadrant A3,304,565455,054
Events in quadrant B3,433,356457,347
Events in quadrant C11,983,695328,913
Events in quadrant D6,219,675415,381

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133031
B0137671
C0400041
D0231051

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6356921.447451%
B63571211.903414%
C6357386560.799119%
D63574366.858581%

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 7466 6358 0 0 0.00% 0.00%
B 7467 6359 2 2 0.03% 0.03%
C 7467 6359 2889 2889 38.69% 45.43%
D 7467 6359 279 279 3.74% 4.39%

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 13681 75.13 853 838 170.9
A 0 13 8362 44.02 853 838 170.9
A 3 137 7437 38.6 853 838 170.9
B 5 172 40634 251.87 839 821 158.1
B 3 209 33663 207.77 839 821 158.1
B 10 245 32800 202.31 839 821 158.1
C 3 233 9396342 64491.7 627 634 145.7
C 14 238 99991 681.98 627 634 145.7
C 0 207 20158 134.01 627 634 145.7
D 8 195 1355716 7100.16 808 787 190.8
D 1 52 767951 4020.13 808 787 190.8
D 7 69 235053 1227.61 808 787 190.8

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