ASTROSAT CZTI

Data Quality Report

Orbit 02984

Creation date: 2024-06-27T14:23:04.535064
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/AS1G05_238T05_9000000418_02984cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_02984cztM0_level2_quad_clean.evt
Size (bytes)414,397,44057,726,720
Size395.2 MB 55.1 MB
Events in quadrant A3,930,397341,970
Events in quadrant B2,839,568358,163
Events in quadrant C2,317,448355,120
Events in quadrant D3,127,822346,757

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150493
B0117662
C0101802
D0126952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49264318.749492%
B49261603.248071%
C4926110.223305%
D4926931.887942%

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 7081 4927 295 295 4.17% 5.99%
B 7081 4927 141 141 1.99% 2.86%
C 7081 4927 8 8 0.11% 0.16%
D 7081 4927 83 83 1.17% 1.68%

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 9 1829103 17807.14 505 493 102.7
A 0 31 54851 529.34 505 493 102.7
A 0 50 30788 295.02 505 493 102.7
B 3 11 331432 3261.39 527 516 101.5
B 2 249 168669 1657.26 527 516 101.5
B 6 203 101084 991.16 527 516 101.5
C 1 192 154634 1265.27 512 515 121.8
C 6 80 57954 471.55 512 515 121.8
C 1 16 55627 452.45 512 515 121.8
D 1 31 469054 3847.92 506 494 121.8
D 13 114 416302 3414.71 506 494 121.8
D 15 35 59591 485.32 506 494 121.8

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