ASTROSAT CZTI

Data Quality Report

Orbit 32222

Creation date: 2024-06-27T20:37:45.793978
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_057T01_9000004692_32222cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32222cztM0_level2_quad_clean.evt
Size (bytes)626,886,720112,394,880
Size597.8 MB 107.2 MB
Events in quadrant A3,198,828762,616
Events in quadrant B5,586,391771,135
Events in quadrant C3,812,584748,672
Events in quadrant D5,969,636689,892

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133763
B0208972
C0153282
D0221082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6185490.792239%
B61853746.046888%
C618587014.066289%
D61854316.968472%

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 7540 6186 0 0 0.00% 0.00%
B 7540 6186 124 124 1.64% 2.00%
C 7540 6186 42 42 0.56% 0.68%
D 7540 6186 257 257 3.41% 4.15%

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 15 174 15170 88.58 822 809 162.1
A 13 254 12189 70.2 822 809 162.1
A 13 6 11316 64.81 822 809 162.1
B 6 159 1740324 11567.86 814 797 150.4
B 4 80 288971 1916.36 814 797 150.4
B 5 172 203132 1345.53 814 797 150.4
C 14 238 314398 1791.49 757 763 175.1
C 14 254 262472 1494.89 757 763 175.1
C 0 10 191737 1090.85 757 763 175.1
D 8 195 2061016 11293.73 770 748 182.4
D 13 249 388663 2126.43 770 748 182.4
D 7 238 234491 1281.3 770 748 182.4

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