ASTROSAT CZTI

Data Quality Report

Orbit 10484

Creation date: 2024-06-27T16:00:03.323590
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_027T01_9000001516_10484cztM0_level2.evt modeM0/AS1G07_027T01_9000001516_10484cztM0_level2_quad_clean.evt
Size (bytes)388,054,08073,762,560
Size370.1 MB 70.3 MB
Events in quadrant A2,705,945464,600
Events in quadrant B2,696,815426,276
Events in quadrant C2,537,692460,715
Events in quadrant D3,420,881481,696

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274151
B0274157
C0274149
D0261138

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042
B042
C042
D042

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02663014989
B03121319875
C02735715843
D03129517073

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5687971.705644%
B5314951.787731%
C5661781.377848%
D62431041.665866%

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 7073 6488 0 0 0.00% 0.00%
B 7073 6197 0 0 0.00% 0.00%
C 7073 6473 0 0 0.00% 0.00%
D 7073 6681 4 4 0.06% 0.06%

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 3 80 76862 554.31 667 651 137.5
A 15 239 24600 174.19 667 651 137.5
A 5 16 18972 133.25 667 651 137.5
B 4 239 144015 1201.65 624 607 119.3
B 11 51 53511 443.29 624 607 119.3
B 0 214 42123 347.87 624 607 119.3
C 14 234 5707 33.44 647 649 151.3
C 13 61 4879 27.96 647 649 151.3
C 8 128 4064 22.58 647 649 151.3
D 1 52 316330 1851.33 707 688 170.5
D 8 195 178397 1042.31 707 688 170.5
D 1 20 170218 994.34 707 688 170.5

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