ASTROSAT CZTI

Data Quality Report

Orbit 29408

Creation date: 2024-06-27T20:03:48.847224
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_102T11_9000004230_29408cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29408cztM0_level2_quad_clean.evt
Size (bytes)574,873,920100,967,040
Size548.2 MB 96.3 MB
Events in quadrant A3,110,796664,353
Events in quadrant B3,438,290678,532
Events in quadrant C3,823,430653,541
Events in quadrant D6,592,338602,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136022
B0144392
C0157782
D0242207

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6570110.167428%
B6570671.019787%
C65701882.861492%
D656969610.595220%

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 6571 0 0 0.00% 0.00%
B 7580 6571 27 27 0.36% 0.41%
C 7580 6571 0 0 0.00% 0.00%
D 7579 6570 613 613 8.09% 9.33%

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 0 13 41635 255.94 794 778 159.6
A 13 254 10602 61.54 794 778 159.6
A 3 137 7973 45.07 794 778 159.6
B 5 255 126558 819.26 795 773 153.5
B 0 229 124145 803.54 795 773 153.5
B 10 245 33365 212.28 795 773 153.5
C 3 233 538114 2984.25 768 772 180.1
C 14 238 150882 833.67 768 772 180.1
C 10 9 96672 532.6 768 772 180.1
D 12 33 1720491 9784.86 742 723 175.8
D 1 52 1063433 6046.43 742 723 175.8
D 8 195 642720 3652.73 742 723 175.8

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