ASTROSAT CZTI

Data Quality Report

Orbit 14826

Creation date: 2024-06-27T17:00:09.541630
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/AS1G08_010T02_9000002188_14826cztM0_level2.evt modeM0/AS1G08_010T02_9000002188_14826cztM0_level2_quad_clean.evt
Size (bytes)944,343,360122,192,640
Size900.6 MB 116.5 MB
Events in quadrant A6,767,678707,316
Events in quadrant B7,074,713697,567
Events in quadrant C6,824,802691,248
Events in quadrant D7,019,756672,503

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288044
B0296913
C0287673
D0302293

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134821751.298027%
B134823262.418039%
C134821421.053256%
D134832461.824520%

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 14013 13485 0 0 0.00% 0.00%
B 14013 13485 57 57 0.41% 0.42%
C 14013 13485 0 0 0.00% 0.00%
D 14014 13486 100 100 0.71% 0.74%

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 12 189 274075 797.87 1682 1646 341.4
A 0 226 14836 38.63 1682 1646 341.4
A 9 143 14033 36.28 1682 1646 341.4
B 3 64 216882 675.19 1660 1620 318.8
B 0 189 109951 339.79 1660 1620 318.8
B 0 229 38941 117.06 1660 1620 318.8
C 3 233 492043 1298.94 1614 1623 377.6
C 8 128 14526 34.18 1614 1623 377.6
C 6 96 14097 33.04 1614 1623 377.6
D 7 254 623415 1447.34 1604 1569 429.6
D 10 70 79397 181.14 1604 1569 429.6
D 12 110 77927 177.72 1604 1569 429.6

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