ASTROSAT CZTI

Data Quality Report

Orbit 23483

Creation date: 2024-06-27T18:55:01.237750
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/AS1A07_148T02_9000003474_23483cztM0_level2.evt modeM0/AS1A07_148T02_9000003474_23483cztM0_level2_quad_clean.evt
Size (bytes)655,727,04085,489,920
Size625.4 MB 81.5 MB
Events in quadrant A4,056,597515,739
Events in quadrant B4,432,670522,878
Events in quadrant C4,356,535505,565
Events in quadrant D6,460,794478,419

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172722
B0184012
C0180322
D0245816

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81462973.645961%
B81463724.566658%
C81473534.332883%
D814686610.630985%

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 8546 8146 0 0 0.00% 0.00%
B 8546 8146 14 14 0.16% 0.17%
C 8547 8147 6 6 0.07% 0.07%
D 8545 8145 541 541 6.33% 6.64%

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 13 254 13207 56.95 1049 1024 213.9
A 3 137 9712 40.62 1049 1024 213.9
A 0 226 9271 38.55 1049 1024 213.9
B 0 189 238959 1174.15 1033 1007 202.7
B 15 32 75560 367.87 1033 1007 202.7
B 0 230 47202 227.94 1033 1007 202.7
C 7 247 183020 759.11 1005 1011 239.8
C 14 238 155607 644.78 1005 1011 239.8
C 2 16 66167 271.75 1005 1011 239.8
D 1 52 2272611 9176.48 998 968 247.6
D 12 233 216977 872.58 998 968 247.6
D 13 249 119516 478.88 998 968 247.6

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