ASTROSAT CZTI

Data Quality Report

Orbit 06814

Creation date: 2024-06-27T15:11:57.279430
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_086T02_9000000936_06814cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06814cztM0_level2_quad_clean.evt
Size (bytes)458,861,76072,181,440
Size437.6 MB 68.8 MB
Events in quadrant A3,319,205439,553
Events in quadrant B3,166,867443,675
Events in quadrant C3,112,644433,238
Events in quadrant D3,860,299419,662

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139813
B0134862
C0134982
D0156142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64391001.553036%
B6439701.087125%
C6439480.745457%
D64391071.661749%

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 7564 6440 14 14 0.19% 0.22%
B 7564 6440 0 0 0.00% 0.00%
C 7564 6440 2 2 0.03% 0.03%
D 7564 6440 61 61 0.81% 0.95%

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 182718 1124.71 800 782 161.8
A 13 248 22807 136.16 800 782 161.8
A 15 234 14707 86.08 800 782 161.8
B 4 81 26135 164.59 801 783 154.0
B 4 173 24142 151.65 801 783 154.0
B 12 111 15392 94.84 801 783 154.0
C 12 16 28775 156.77 778 784 178.6
C 9 247 26474 143.88 778 784 178.6
C 12 4 9764 50.29 778 784 178.6
D 8 195 346630 1805.38 779 756 191.6
D 14 34 340616 1773.99 779 756 191.6
D 2 216 118355 613.84 779 756 191.6

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