ASTROSAT CZTI

Data Quality Report

Orbit 39132

Creation date: 2024-06-27T22:00:58.549240
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/AS1A12_083T07_9000005440_39132cztM0_level2.fits modeM0/AS1A12_083T07_9000005440_39132cztM0_level2_quad_clean.evt
Size (bytes)283,890,24044,089,920
Size270.7 MB 42.0 MB
Events in quadrant A1,981,557321,674
Events in quadrant B1,347,279328,467
Events in quadrant C1,655,239310,856
Events in quadrant D5,306,248174,679

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080841
B058390
C065990
D0176800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2790531.899642%
B2790220.788530%
C2790351.254480%
D2790138249.534050%

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 4313 2791 35 35 0.81% 1.25%
B 4313 2791 9 9 0.21% 0.32%
C 4313 2791 24 24 0.56% 0.86%
D 4313 2791 1172 1172 27.17% 41.99%

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 15 223 305799 4537.06 324 318 67.3
A 10 83 220364 3268.16 324 318 67.3
A 14 235 146000 2163.7 324 318 67.3
B 5 172 74008 1145.82 321 313 64.3
B 12 111 7941 118.6 321 313 64.3
B 11 111 7347 109.37 321 313 64.3
C 9 187 288291 3822.88 314 316 75.3
C 15 214 117401 1554.31 314 316 75.3
C 3 233 8081 103.08 314 316 75.3
D 12 235 3474529 52287.46 267 259 66.4
D 12 33 692222 10413.98 267 259 66.4
D 2 120 26251 391.18 267 259 66.4

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