ASTROSAT CZTI

Data Quality Report

Orbit 16046

Creation date: 2024-06-27T17:17:13.875997
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/AS1G08_012T01_9000002370_16046cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16046cztM0_level2_quad_clean.evt
Size (bytes)743,889,600133,634,880
Size709.4 MB 127.4 MB
Events in quadrant A5,434,188813,083
Events in quadrant B5,437,032834,022
Events in quadrant C5,449,445807,298
Events in quadrant D5,426,634795,330

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234403
B0235262
C0235102
D0241262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11528900.780708%
B11528820.711312%
C11528940.815406%
D11528860.746010%

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 13009 11529 2 2 0.02% 0.02%
B 13009 11529 0 0 0.00% 0.00%
C 13009 11529 0 0 0.00% 0.00%
D 13009 11529 21 21 0.16% 0.18%

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 3 80 126248 448.99 1373 1340 278.2
A 12 96 13788 44.75 1373 1340 278.2
A 0 226 12180 38.97 1373 1340 278.2
B 0 230 47848 175.82 1370 1333 264.6
B 12 111 32633 118.31 1370 1333 264.6
B 11 111 27828 100.15 1370 1333 264.6
C 14 238 202436 652.49 1319 1324 308.2
C 3 233 73112 232.91 1319 1324 308.2
C 8 128 11080 31.65 1319 1324 308.2
D 13 232 234480 716.66 1339 1301 325.4
D 2 152 112271 341.06 1339 1301 325.4
D 2 234 38738 115.06 1339 1301 325.4

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