ASTROSAT CZTI

Data Quality Report

Orbit 08698

Creation date: 2024-06-27T15:36:06.390124
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_052T01_9000001208_08698cztM0_level2.evt modeM0/AS1A03_052T01_9000001208_08698cztM0_level2_quad_clean.evt
Size (bytes)372,162,24080,994,240
Size354.9 MB 77.2 MB
Events in quadrant A2,636,635522,805
Events in quadrant B2,814,377530,010
Events in quadrant C2,582,774536,757
Events in quadrant D2,882,611498,856

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241
B0241
C0241
D0251

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012418
B012416
C012412
D012414

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130731958
B0144092699
C0127791887
D0141302183

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5212591.132003%
B51331042.026106%
C5215340.651965%
D5148731.418026%

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 7447 5736 3 3 0.04% 0.05%
B 7447 5658 23 23 0.31% 0.41%
C 7445 5729 0 0 0.00% 0.00%
D 7447 5697 38 38 0.51% 0.67%

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 13 251 49972 365.34 664 651 135.0
A 13 248 25148 181.46 664 651 135.0
A 0 226 6307 41.9 664 651 135.0
B 10 16 174004 1378.74 665 650 125.7
B 0 230 24081 186.35 665 650 125.7
B 4 173 14394 109.31 665 650 125.7
C 13 61 4909 27.63 661 666 153.6
C 8 222 3928 21.24 661 666 153.6
C 14 67 2047 8.99 661 666 153.6
D 2 152 200680 1160.55 640 626 172.4
D 1 52 112676 650.03 640 626 172.4
D 9 64 27440 155.55 640 626 172.4

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