ASTROSAT CZTI

Data Quality Report

Orbit 30523

Creation date: 2024-06-27T20:16:30.116556
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_053T14_9000004390_30523cztM0_level2.evt modeM0/AS1A10_053T14_9000004390_30523cztM0_level2_quad_clean.evt
Size (bytes)432,388,80066,309,120
Size412.4 MB 63.2 MB
Events in quadrant A3,171,971420,006
Events in quadrant B4,102,488416,279
Events in quadrant C2,620,846403,143
Events in quadrant D2,847,258404,636

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126671
B0159081
C0110442
D0115891

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51843065.902778%
B5184951.832562%
C5183821.582095%
D5183480.926105%

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 6204 5185 211 211 3.40% 4.07%
B 6204 5185 1 1 0.02% 0.02%
C 6203 5184 5 5 0.08% 0.10%
D 6203 5184 12 12 0.19% 0.23%

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 96 735319 5769.8 628 615 127.3
A 8 192 12212 91.07 628 615 127.3
A 13 254 8545 62.28 628 615 127.3
B 6 159 1391516 11264.22 635 620 123.5
B 6 36 137354 1107.34 635 620 123.5
B 0 229 40832 325.66 635 620 123.5
C 14 238 101061 695.47 615 622 144.4
C 10 22 90157 619.97 615 622 144.4
C 3 233 15746 104.72 615 622 144.4
D 8 195 257261 1702.33 631 616 150.8
D 13 104 102870 678.25 631 616 150.8
D 13 249 55022 360.88 631 616 150.8

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