ASTROSAT CZTI

Data Quality Report

Orbit 10524

Creation date: 2024-06-27T16:00:31.227694
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/AS1A03_033T01_9000001524_10524cztM0_level2.evt modeM0/AS1A03_033T01_9000001524_10524cztM0_level2_quad_clean.evt
Size (bytes)406,581,12049,599,360
Size387.7 MB 47.3 MB
Events in quadrant A2,782,665273,366
Events in quadrant B3,331,571333,631
Events in quadrant C2,255,045311,969
Events in quadrant D3,650,049277,870

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113511
B01293931
C098216
D01376911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43311533.532671%
B43243828.834413%
C4329160.369600%
D43292956.814507%

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 4331 4331 125 125 2.89% 2.89%
B 4331 4331 246 246 5.68% 5.68%
C 4331 4331 1 1 0.02% 0.02%
D 4331 4331 274 274 6.33% 6.33%

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 15 239 324935 2341.97 623 617 138.5
A 3 80 24005 168.89 623 617 138.5
A 13 251 20621 144.45 623 617 138.5
B 4 239 1143103 10247.5 551 543 111.5
B 0 214 20834 181.99 551 543 111.5
B 12 111 10011 84.92 551 543 111.5
C 14 234 13604 88.42 572 578 147.3
C 14 238 7749 48.68 572 578 147.3
C 13 61 3896 22.52 572 578 147.3
D 2 16 694703 4174.6 601 590 166.3
D 8 195 329768 1979.77 601 590 166.3
D 1 52 257907 1547.58 601 590 166.3

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