ASTROSAT CZTI

Data Quality Report

Orbit 10813

Creation date: 2024-06-27T16:04:45.444414
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/AS1G07_053T01_9000001566_10813cztM0_level2.evt modeM0/AS1G07_053T01_9000001566_10813cztM0_level2_quad_clean.evt
Size (bytes)613,955,52081,504,000
Size585.5 MB 77.7 MB
Events in quadrant A6,076,392431,271
Events in quadrant B5,257,089547,909
Events in quadrant C2,782,067555,120
Events in quadrant D4,071,478513,670

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01222
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02219938
B01963928
C01246617
D01617859

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6007141123.489263%
B600774512.402197%
C6008340.565912%
D60022444.065312%

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 7205 6015 828 828 11.49% 13.77%
B 7206 6016 447 447 6.20% 7.43%
C 7206 6015 2 2 0.03% 0.03%
D 7206 6016 178 178 2.47% 2.96%

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 8 5 3528583 27541.91 628 618 128.1
A 4 2 90980 705.43 628 618 128.1
A 15 174 14074 105.05 628 618 128.1
B 4 239 1474957 10948.49 712 698 134.7
B 0 85 548096 4065.22 712 698 134.7
B 15 204 336560 2494.26 712 698 134.7
C 0 207 25563 151.1 706 713 164.5
C 13 61 5413 28.58 706 713 164.5
C 8 222 2800 12.69 706 713 164.5
D 12 233 305355 1816.94 692 674 167.7
D 1 52 210861 1253.43 692 674 167.7
D 10 199 153273 910.01 692 674 167.7

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