ASTROSAT CZTI

Data Quality Report

Orbit 46990

Creation date: 2024-06-27T23:30:22.609445
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/AS1A13_071T08_9000006292_46990cztM0_level2.fits modeM0/AS1A13_071T08_9000006292_46990cztM0_level2_quad_clean.evt
Size (bytes)466,931,52041,693,760
Size445.3 MB 39.8 MB
Events in quadrant A3,274,352365,960
Events in quadrant B7,943,71437,444
Events in quadrant C2,799,310315,963
Events in quadrant D3,002,360302,040

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0691

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121483
B02591117
C01080212
D0113164

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3393882.593575%
B3392312692.158019%
C339246813.797170%
D339239111.527123%

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 3434 3395 0 0 0.00% 0.00%
B 3434 3395 2920 2920 85.03% 86.01%
C 3434 3395 385 385 11.21% 11.34%
D 3434 3394 369 369 10.75% 10.87%

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 10 83 1734289 20803.86 388 379 83.3
A 0 243 26213 309.96 388 379 83.3
A 15 235 6235 70.26 388 379 83.3
B 3 112 7091839 169968.86 204 197 41.7
B 5 250 15595 369.05 204 197 41.7
B 4 227 10321 242.65 204 197 41.7
C 12 2 1329197 15644.59 355 356 84.9
C 14 254 43459 507.45 355 356 84.9
C 9 54 27534 319.96 355 356 84.9
D 13 249 621291 6832.53 356 344 90.9
D 12 218 583119 6412.5 356 344 90.9
D 1 52 308772 3393.76 356 344 90.9

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