ASTROSAT CZTI

Data Quality Report

Orbit 38094

Creation date: 2024-06-27T21:48:18.267487
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/AS1A11_047T09_9000005362_38094cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38094cztM0_level2_quad_clean.evt
Size (bytes)818,164,800193,832,640
Size780.3 MB 184.9 MB
Events in quadrant A6,255,8761,348,000
Events in quadrant B7,499,2681,281,894
Events in quadrant C7,590,1671,247,981
Events in quadrant D8,038,3761,184,485

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254747
B0297973
C0295353
D03167711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02400
B02400
C02400
D02400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430
B0430
C0430
D0430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11650350.300429%
B116526945.956059%
C116524874.179540%
D116483583.073489%

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 15982 11654 11 11 0.07% 0.09%
B 15982 11655 550 550 3.44% 4.72%
C 15982 11655 419 419 2.62% 3.60%
D 15982 11654 325 325 2.03% 2.79%

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 739367 2675.83 1365 1337 275.8
A 9 254 59532 210.99 1365 1337 275.8
A 15 223 47815 168.51 1365 1337 275.8
B 5 172 1899327 7458.5 1323 1285 254.5
B 0 229 242290 947.05 1323 1285 254.5
B 0 189 87229 337.72 1323 1285 254.5
C 1 23 1733982 5711.97 1301 1309 303.3
C 15 214 474934 1561.36 1301 1309 303.3
C 10 22 71477 231.32 1301 1309 303.3
D 1 52 929734 2905.94 1309 1274 319.5
D 12 233 548571 1712.96 1309 1274 319.5
D 2 250 378646 1181.12 1309 1274 319.5

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