ASTROSAT CZTI

Data Quality Report

Orbit 13160

Creation date: 2024-06-27T16:37:03.706393
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/AS1A04_094T01_9000001942_13160cztM0_level2.evt modeM0/AS1A04_094T01_9000001942_13160cztM0_level2_quad_clean.evt
Size (bytes)501,333,12096,528,960
Size478.1 MB 92.1 MB
Events in quadrant A3,725,968602,730
Events in quadrant B4,232,926605,938
Events in quadrant C3,151,097622,254
Events in quadrant D3,583,520590,872

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158413
B0174072
C0145932
D0159952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71941141.584654%
B71943685.115374%
C7194470.653322%
D71941071.487351%

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 7740 7198 11 11 0.14% 0.15%
B 7740 7198 188 188 2.43% 2.61%
C 7740 7198 0 0 0.00% 0.00%
D 7740 7198 44 44 0.57% 0.61%

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 23 253970 1508.02 828 810 167.9
A 12 189 126252 747.23 828 810 167.9
A 4 2 77631 457.61 828 810 167.9
B 4 239 720904 4558.7 817 797 158.0
B 0 230 158151 996.14 817 797 158.0
B 4 80 98675 619.63 817 797 158.0
C 15 208 6275 29.34 806 808 186.4
C 13 61 5873 27.18 806 808 186.4
C 14 234 2129 7.09 806 808 186.4
D 1 52 492327 2569.3 800 778 191.3
D 8 195 31179 158.9 800 778 191.3
D 2 234 27838 141.44 800 778 191.3

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