ASTROSAT CZTI

Data Quality Report

Orbit 29968

Creation date: 2024-06-27T20:09:19.618235
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_053T06_9000004300_29968cztM0_level2.evt modeM0/AS1A10_053T06_9000004300_29968cztM0_level2_quad_clean.evt
Size (bytes)668,145,60087,641,280
Size637.2 MB 83.6 MB
Events in quadrant A3,938,134546,813
Events in quadrant B6,691,773533,911
Events in quadrant C4,666,387518,602
Events in quadrant D4,418,579519,682

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166042
B0252332
C0188772
D0181152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76891742.262973%
B76893664.760047%
C76902473.211964%
D7690941.222367%

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 8354 7691 10 10 0.12% 0.13%
B 8354 7691 75 75 0.90% 0.98%
C 8355 7692 7 7 0.08% 0.09%
D 8355 7692 34 34 0.41% 0.44%

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 12 96 192109 992.13 959 937 192.7
A 8 192 26418 132.24 959 937 192.7
A 13 254 15105 73.53 959 937 192.7
B 6 159 2234248 12418.08 936 912 179.8
B 6 36 724370 4022.66 936 912 179.8
B 12 111 22147 118.07 936 912 179.8
C 3 233 985489 4669.59 901 905 210.9
C 14 238 148073 697.97 901 905 210.9
C 2 114 18586 83.86 901 905 210.9
D 7 80 569379 2589.13 926 903 219.6
D 8 195 228009 1034.36 926 903 219.6
D 12 233 68544 308.07 926 903 219.6

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