ASTROSAT CZTI

Data Quality Report

Orbit 06189

Creation date: 2024-06-27T15:03:56.139569
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/AS1A02_085T02_9000000808_06189cztM0_level2.evt modeM0/AS1A02_085T02_9000000808_06189cztM0_level2_quad_clean.evt
Size (bytes)932,060,160180,688,320
Size888.9 MB 172.3 MB
Events in quadrant A6,509,1551,123,129
Events in quadrant B7,162,6601,132,015
Events in quadrant C6,347,8691,139,901
Events in quadrant D7,230,7671,082,305

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033127
B033036
C033230
D033246

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0326893448
B0346583998
C0326553438
D0355683924

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A144121140.791007%
B143541701.184339%
C14416720.499445%
D143712341.628279%

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 18151 15144 0 0 0.00% 0.00%
B 18151 15093 29 29 0.16% 0.19%
C 18150 15154 0 0 0.00% 0.00%
D 18150 15106 124 124 0.68% 0.82%

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 117441 344.12 1648 1608 336.6
A 15 236 36330 103.15 1648 1608 336.6
A 0 226 16031 42.85 1648 1608 336.6
B 3 64 303227 951.79 1650 1610 316.9
B 15 204 243110 762.08 1650 1610 316.9
B 0 219 93254 289.19 1650 1610 316.9
C 1 16 82987 220.92 1600 1606 368.4
C 9 16 23186 58.58 1600 1606 368.4
C 13 61 12755 30.27 1600 1606 368.4
D 2 136 581035 1501.91 1587 1533 385.8
D 12 110 151565 388.84 1587 1533 385.8
D 13 105 148205 380.13 1587 1533 385.8

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