ASTROSAT CZTI

Data Quality Report

Orbit 15329

Creation date: 2024-06-27T17:06:58.079821
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/AS1T02_073T01_9000002260_15329cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15329cztM0_level2_quad_clean.evt
Size (bytes)440,824,320108,190,080
Size420.4 MB 103.2 MB
Events in quadrant A3,121,509710,551
Events in quadrant B3,240,124724,844
Events in quadrant C3,311,601718,034
Events in quadrant D3,249,773684,435

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133243
B0136042
C0137932
D0136512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6288450.715649%
B6288861.367684%
C6288781.240458%
D6288510.811069%

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 7594 6290 0 0 0.00% 0.00%
B 7594 6290 1 1 0.01% 0.02%
C 7593 6289 12 12 0.16% 0.19%
D 7594 6290 3 3 0.04% 0.05%

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 2 79 9749 55.77 809 794 160.6
A 0 226 6975 38.49 809 794 160.6
A 12 194 5986 32.33 809 794 160.6
B 4 173 44474 288.56 809 789 151.4
B 12 111 17924 113.19 809 789 151.4
B 4 48 16085 101.04 809 789 151.4
C 3 233 175003 944.33 804 813 184.5
C 13 61 5618 26.05 804 813 184.5
C 3 202 1839 5.56 804 813 184.5
D 2 33 214240 1113.96 800 777 191.6
D 2 234 19166 95.96 800 777 191.6
D 10 70 8328 39.41 800 777 191.6

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