ASTROSAT CZTI

Data Quality Report

Orbit 32178

Creation date: 2024-06-27T20:37:17.267390
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/AS1A09_131T01_9000004690_32178cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32178cztM0_level2_quad_clean.evt
Size (bytes)560,151,360134,611,200
Size534.2 MB 128.4 MB
Events in quadrant A3,234,929930,360
Events in quadrant B5,473,300940,458
Events in quadrant C3,751,430892,358
Events in quadrant D4,073,463869,819

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136053
B0206752
C0152982
D0164132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6361190.298695%
B63612493.914479%
C63615108.017607%
D63611993.128439%

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 7771 6362 0 0 0.00% 0.00%
B 7771 6361 90 90 1.16% 1.41%
C 7771 6359 48 48 0.62% 0.75%
D 7771 6362 127 127 1.63% 2.00%

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 12 189 22880 134.3 828 815 164.3
A 13 6 21543 126.16 828 815 164.3
A 13 254 11882 67.36 828 815 164.3
B 6 159 1765325 11716.75 821 801 150.6
B 5 172 288803 1912.38 821 801 150.6
B 0 190 70582 463.36 821 801 150.6
C 0 10 283255 1589.26 775 783 177.7
C 14 238 236718 1327.43 775 783 177.7
C 14 254 152256 852.23 775 783 177.7
D 8 195 663799 3553.23 786 767 186.6
D 12 218 314115 1679.25 786 767 186.6
D 2 250 52861 279.17 786 767 186.6

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