ASTROSAT CZTI

Data Quality Report

Orbit 30371

Creation date: 2024-06-27T20:14:24.996547
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/AS1A10_053T17_9000004366_30371cztM0_level2.evt modeM0/AS1A10_053T17_9000004366_30371cztM0_level2_quad_clean.evt
Size (bytes)568,595,52096,756,480
Size542.3 MB 92.3 MB
Events in quadrant A3,498,353627,918
Events in quadrant B5,328,801630,392
Events in quadrant C4,182,594602,660
Events in quadrant D3,757,712603,431

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144262
B0202122
C0168032
D0153622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6687911.360849%
B66871362.033797%
C66871932.886197%
D66871642.452520%

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 7672 6687 19 19 0.25% 0.28%
B 7672 6687 2 2 0.03% 0.03%
C 7672 6687 3 3 0.04% 0.04%
D 7672 6687 107 107 1.39% 1.60%

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 13 150526 874.12 860 845 171.2
A 8 192 24565 138.52 860 845 171.2
A 13 254 12582 68.54 860 845 171.2
B 6 159 1949156 11894.47 856 835 163.8
B 12 111 19896 116.37 856 835 163.8
B 11 111 18517 107.95 856 835 163.8
C 3 233 781078 4059.72 828 834 192.2
C 14 238 136375 705.24 828 834 192.2
C 0 10 21926 109.74 828 834 192.2
D 13 168 326485 1639.8 832 815 198.6
D 8 195 142902 715.43 832 815 198.6
D 2 250 59722 296.61 832 815 198.6

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