ASTROSAT CZTI

Data Quality Report

Orbit 43331

Creation date: 2024-06-27T22:50:42.677671
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/AS1T05_158T01_9000005868_43331cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43331cztM0_level2_quad_clean.evt
Size (bytes)285,477,12081,823,680
Size272.3 MB 78.0 MB
Events in quadrant A2,716,561552,722
Events in quadrant B2,367,934561,276
Events in quadrant C2,359,504541,524
Events in quadrant D2,748,850485,250

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107742
B0101572
C096912
D0114862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4800120.250000%
B4800591.229167%
C480030.062500%
D48001473.062500%

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 6893 4801 9 9 0.13% 0.19%
B 6893 4801 52 52 0.75% 1.08%
C 6893 4801 0 0 0.00% 0.00%
D 6892 4800 135 135 1.96% 2.81%

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 520357 4575.75 552 541 113.6
A 15 237 57500 501.39 552 541 113.6
A 13 6 7187 58.5 552 541 113.6
B 5 172 168760 1583.56 541 527 106.2
B 0 189 44146 410.58 541 527 106.2
B 0 245 16637 151.64 541 527 106.2
C 15 214 202358 1586.1 542 545 127.2
C 3 233 27946 215.35 542 545 127.2
C 15 159 6471 46.57 542 545 127.2
D 13 249 436533 3312.78 535 520 131.6
D 12 6 116658 882.41 535 520 131.6
D 7 96 100755 761.58 535 520 131.6

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