ASTROSAT CZTI

Data Quality Report

Orbit 30606

Creation date: 2024-06-27T20:17:36.843585
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/AS1A10_021T09_9000004410_30606cztM0_level2.evt modeM0/AS1A10_021T09_9000004410_30606cztM0_level2_quad_clean.evt
Size (bytes)32,734,0806,552,000
Size31.2 MB 6.2 MB
Events in quadrant A146,37843,060
Events in quadrant B253,61042,379
Events in quadrant C160,32640,669
Events in quadrant D404,05939,454

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06840
B010400
C07120
D014530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34200.000000%
B34110.293255%
C34100.000000%
D34151.466276%

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 342 342 0 0 0.00% 0.00%
B 341 341 0 0 0.00% 0.00%
C 341 341 0 0 0.00% 0.00%
D 341 341 25 25 7.33% 7.33%

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 13 254 718 69.37 37 36 9.8
A 3 137 369 33.87 37 36 9.8
A 0 226 322 29.09 37 36 9.8
B 6 159 88591 9458.58 37 36 9.4
B 0 229 11972 1274.89 37 36 9.4
B 15 185 4622 489.83 37 36 9.4
C 15 208 13172 1250.02 35 35 10.5
C 14 238 5642 533.52 35 35 10.5
C 3 233 1039 95.53 35 35 10.5
D 8 195 194332 18353.49 36 34 10.6
D 5 222 51622 4873.03 36 34 10.6
D 12 218 10827 1019.51 36 34 10.6

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