ASTROSAT CZTI

Data Quality Report

Orbit 17080

Creation date: 2024-06-27T17:31:47.196993
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/AS1A05_004T04_9000002534_17080cztM0_level2.evt modeM0/AS1A05_004T04_9000002534_17080cztM0_level2_quad_clean.evt
Size (bytes)467,360,64084,211,200
Size445.7 MB 80.3 MB
Events in quadrant A2,994,853551,213
Events in quadrant B3,264,326568,307
Events in quadrant C3,413,424530,753
Events in quadrant D4,069,264475,957

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126332
B0134393
C0138622
D0162602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6075300.493827%
B6074510.839644%
C6074821.350016%
D60744256.997037%

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 7470 6077 0 0 0.00% 0.00%
B 7469 6075 2 2 0.03% 0.03%
C 7469 6075 1 1 0.01% 0.02%
D 7469 6076 352 352 4.71% 5.79%

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 4 2 8107 47.6 776 763 154.3
A 0 226 6722 38.62 776 763 154.3
A 12 194 5527 30.88 776 763 154.3
B 0 189 125555 860.05 784 765 145.1
B 7 220 32431 218.24 784 765 145.1
B 0 219 16879 111.06 784 765 145.1
C 3 233 362593 2083.84 748 753 173.6
C 14 238 119009 681.04 748 753 173.6
C 7 247 9427 49.95 748 753 173.6
D 5 222 972944 5610.89 718 697 173.3
D 10 70 261971 1507.83 718 697 173.3
D 12 144 40653 230.59 718 697 173.3

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