ASTROSAT CZTI

Data Quality Report

Orbit 33098

Creation date: 2024-06-27T20:44:50.339431
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_008T06_9000004762_33098cztM0_level2.evt modeM0/AS1A11_008T06_9000004762_33098cztM0_level2_quad_clean.evt
Size (bytes)327,055,68030,283,200
Size311.9 MB 28.9 MB
Events in quadrant A1,562,117173,239
Events in quadrant B2,223,773169,327
Events in quadrant C1,950,386169,392
Events in quadrant D3,927,579153,747

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071112
B089071
C081291
D0140841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A353330.084914%
B35331694.783470%
C3533591.669969%
D35332326.566657%

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 4847 3534 1 1 0.02% 0.03%
B 4847 3534 115 115 2.37% 3.25%
C 4847 3534 41 41 0.85% 1.16%
D 4847 3534 275 275 5.67% 7.78%

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 10 248 9550 112.31 399 392 81.5
A 13 254 7120 82.51 399 392 81.5
A 3 137 3905 43.08 399 392 81.5
B 5 172 512431 6710.1 393 382 76.3
B 0 219 49144 639.0 393 382 76.3
B 0 189 42267 548.88 393 382 76.3
C 0 10 199549 2202.64 383 386 90.4
C 7 221 146193 1612.55 383 386 90.4
C 8 111 54863 602.48 383 386 90.4
D 7 223 1013596 10206.8 374 366 99.3
D 8 195 982484 9893.39 374 366 99.3
D 2 250 142055 1427.31 374 366 99.3

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