ASTROSAT CZTI

Data Quality Report

Orbit 06797

Creation date: 2024-06-27T15:11:46.982511
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/AS1G06_086T02_9000000936_06797cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06797cztM0_level2_quad_clean.evt
Size (bytes)83,039,04025,341,120
Size79.2 MB 24.2 MB
Events in quadrant A588,605165,405
Events in quadrant B610,300168,362
Events in quadrant C605,303164,780
Events in quadrant D606,987158,794

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029501
B029560
C029510
D029670

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A147320.135777%
B147300.000000%
C147300.000000%
D147300.000000%

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 1473 1473 0 0 0.00% 0.00%
B 1473 1473 0 0 0.00% 0.00%
C 1473 1473 0 0 0.00% 0.00%
D 1473 1473 0 0 0.00% 0.00%

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 0 226 1388 36.81 152 149 33.7
A 12 194 1309 34.46 152 149 33.7
A 13 254 925 23.05 152 149 33.7
B 4 81 5753 173.6 156 152 32.3
B 12 111 3086 90.94 156 152 32.3
B 11 111 2473 71.94 156 152 32.3
C 9 247 11936 317.24 151 152 37.1
C 12 16 2384 60.09 151 152 37.1
C 13 61 1221 28.78 151 152 37.1
D 8 195 36956 978.3 148 143 37.6
D 8 240 11770 308.99 148 143 37.6
D 2 14 2510 62.9 148 143 37.6

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