ASTROSAT CZTI

Data Quality Report

Orbit 24130

Creation date: 2024-06-27T19:02:27.229757
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/AS1A07_069T01_9000003570_24130cztM0_level2.evt modeM0/AS1A07_069T01_9000003570_24130cztM0_level2_quad_clean.evt
Size (bytes)521,847,36076,176,000
Size497.7 MB 72.6 MB
Events in quadrant A3,564,479483,658
Events in quadrant B3,639,177490,221
Events in quadrant C4,324,928452,263
Events in quadrant D3,845,922438,248

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142432
B0145632
C0167832
D0152702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63391001.577536%
B63391352.129673%
C63393926.183941%
D63391522.397855%

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 7639 6339 0 0 0.00% 0.00%
B 7639 6339 13 13 0.17% 0.21%
C 7639 6339 175 175 2.29% 2.76%
D 7639 6340 71 71 0.93% 1.12%

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 2 250 10941 55.32 918 903 181.4
A 13 254 10580 53.33 918 903 181.4
A 3 1 9469 47.21 918 903 181.4
B 10 247 42393 245.49 910 893 169.1
B 12 111 19680 111.13 910 893 169.1
B 11 111 17479 98.11 910 893 169.1
C 0 239 771807 3980.73 842 851 193.7
C 14 238 135088 693.12 842 851 193.7
C 2 16 107562 550.99 842 851 193.7
D 8 195 335915 1593.29 864 839 210.3
D 12 218 162929 770.74 864 839 210.3
D 1 52 29081 134.29 864 839 210.3

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