ASTROSAT CZTI

Data Quality Report

Orbit 11410

Creation date: 2024-06-27T16:12:32.911436
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_066T01_9000001668_11410cztM0_level2.evt modeM0/AS1G08_066T01_9000001668_11410cztM0_level2_quad_clean.evt
Size (bytes)590,411,520105,076,800
Size563.1 MB 100.2 MB
Events in quadrant A3,842,974677,147
Events in quadrant B5,587,511658,682
Events in quadrant C3,470,256668,130
Events in quadrant D4,446,607631,533

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167644
B0219673
C0160893
D0189573

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7858750.954441%
B78586087.737338%
C7858310.394502%
D78583103.945024%

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 8438 7862 12 12 0.14% 0.15%
B 8438 7862 315 315 3.73% 4.01%
C 8438 7862 0 0 0.00% 0.00%
D 8438 7861 260 260 3.08% 3.31%

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 5 198562 1053.05 914 891 187.7
A 11 29 35209 182.82 914 891 187.7
A 1 162 31526 163.2 914 891 187.7
B 4 239 1691670 9693.59 898 873 174.4
B 3 64 147495 840.61 898 873 174.4
B 3 189 125760 716.0 898 873 174.4
C 13 61 6510 27.19 889 892 206.6
C 14 234 4624 18.06 889 892 206.6
C 3 202 2152 6.1 889 892 206.6
D 10 253 624651 2958.33 866 840 210.9
D 13 152 350036 1656.01 866 840 210.9
D 2 120 64440 301.61 866 840 210.9

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