ASTROSAT CZTI

Data Quality Report

Orbit 10030

Creation date: 2024-06-27T15:53:56.565112
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/AS1G07_022T02_9000001434_10030cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10030cztM0_level2_quad_clean.evt
Size (bytes)469,123,200102,052,800
Size447.4 MB 97.3 MB
Events in quadrant A3,284,786668,840
Events in quadrant B3,311,404681,904
Events in quadrant C2,919,319671,085
Events in quadrant D4,263,598628,797

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141523
B0139912
C0130182
D0167072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6308941.490171%
B6308881.395054%
C6308310.491439%
D63081261.997464%

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 7598 6308 1 1 0.01% 0.02%
B 7598 6308 7 7 0.09% 0.11%
C 7598 6308 0 0 0.00% 0.00%
D 7598 6308 74 74 0.97% 1.17%

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 15 222969 1416.75 776 762 156.8
A 8 5 61489 387.18 776 762 156.8
A 15 174 7401 42.33 776 762 156.8
B 4 81 172235 1151.27 786 771 148.9
B 4 239 48043 317.4 786 771 148.9
B 0 214 20880 135.02 786 771 148.9
C 13 61 5733 28.86 747 753 172.6
C 8 222 3281 14.65 747 753 172.6
C 14 67 2545 10.38 747 753 172.6
D 2 16 593374 3062.8 736 720 193.5
D 8 195 536906 2770.98 736 720 193.5
D 7 71 119809 615.45 736 720 193.5

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