ASTROSAT CZTI

Data Quality Report

Orbit 10072

Creation date: 2024-06-27T15:54:46.118142
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/AS1G07_039T01_9000001444_10072cztM0_level2.evt modeM0/AS1G07_039T01_9000001444_10072cztM0_level2_quad_clean.evt
Size (bytes)440,262,720104,765,760
Size419.9 MB 99.9 MB
Events in quadrant A3,034,001700,291
Events in quadrant B3,370,235703,758
Events in quadrant C2,844,748688,195
Events in quadrant D3,673,442658,370

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130082
B0140411
C0125321
D0149691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6052761.255783%
B6052931.536682%
C6052500.826173%
D6052911.503635%

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 7252 6052 0 0 0.00% 0.00%
B 7252 6052 22 22 0.30% 0.36%
C 7252 6052 0 0 0.00% 0.00%
D 7252 6052 35 35 0.48% 0.58%

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 8 15 89190 570.31 765 752 155.1
A 0 226 7193 41.54 765 752 155.1
A 12 194 6562 37.47 765 752 155.1
B 4 81 119001 822.26 759 742 143.8
B 0 214 110885 765.83 759 742 143.8
B 10 245 62472 429.21 759 742 143.8
C 13 61 5495 28.39 727 731 167.8
C 8 222 3904 18.91 727 731 167.8
C 14 67 3341 15.55 727 731 167.8
D 8 195 385347 2002.63 728 714 192.1
D 1 52 126785 656.4 728 714 192.1
D 2 16 125556 650.0 728 714 192.1

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