ASTROSAT CZTI

Data Quality Report

Orbit 00129

Creation date: 2024-06-27T13:56:46.280700
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/AS1P01_003T01_9000000002_00129cztM0_level2.evt modeM0/AS1P01_003T01_9000000002_00129cztM0_level2_quad_clean.evt
Size (bytes)230,290,56023,901,120
Size219.6 MB 22.8 MB
Events in quadrant A1,596,076155,699
Events in quadrant B1,839,768158,248
Events in quadrant C1,530,973157,287
Events in quadrant D1,913,921149,827

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04214
B04317
C04519
D04317

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12293509697361
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090753374
B0100413603
C088323311
D0113934736

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A137200.000000%
B1373241.747997%
C137200.000000%
D1366402.928258%

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 2331 1384 16 16 0.69% 1.16%
B 2336 1392 99 99 4.24% 7.11%
C 2341 1390 10 10 0.43% 0.72%
D 2336 1382 124 124 5.31% 8.97%

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 13 65 4705 61.9 409 399 69.6
A 13 239 1948 22.27 409 399 69.6
A 14 171 1696 18.65 409 399 69.6
B 10 48 128358 1382.33 418 420 92.6
B 8 236 48574 520.29 418 420 92.6
B 8 65 27302 290.45 418 420 92.6
C 10 70 3339 26.99 387 402 108.8
C 10 20 1755 12.44 387 402 108.8
C 9 188 1158 6.95 387 402 108.8
D 10 244 241413 2323.59 392 395 103.7
D 13 207 36160 344.8 392 395 103.7
D 7 51 25096 238.14 392 395 103.7

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