ASTROSAT CZTI

Data Quality Report

Orbit 07307

Creation date: 2024-06-27T15:18:17.379936
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_137T02_9000001002_07307cztM0_level2.evt modeM0/AS1G06_137T02_9000001002_07307cztM0_level2_quad_clean.evt
Size (bytes)512,285,76086,359,680
Size488.6 MB 82.4 MB
Events in quadrant A3,844,853531,987
Events in quadrant B3,302,525556,182
Events in quadrant C3,176,301552,759
Events in quadrant D4,745,287516,256

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157993
B0142102
C0139182
D0187032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65642403.656307%
B6564861.310177%
C6564751.142596%
D65643024.600853%

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 8884 6564 103 103 1.16% 1.57%
B 8884 6564 2 2 0.02% 0.03%
C 8884 6565 1 1 0.01% 0.02%
D 8884 6564 219 219 2.47% 3.34%

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 15 234 601805 3653.16 808 792 164.5
A 8 15 99895 602.38 808 792 164.5
A 13 170 18131 105.39 808 792 164.5
B 0 214 65415 407.91 829 809 158.4
B 12 111 15250 91.18 829 809 158.4
B 11 111 12467 73.61 829 809 158.4
C 10 22 16065 80.96 807 813 188.4
C 9 68 6715 31.33 807 813 188.4
C 1 16 6572 30.57 807 813 188.4
D 2 33 901626 4562.27 798 773 197.5
D 2 216 376328 1901.96 798 773 197.5
D 1 20 332118 1678.06 798 773 197.5

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