ASTROSAT CZTI

Data Quality Report

Orbit 27814

Creation date: 2024-06-27T19:44:45.625641
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/AS1A10_048T08_9000004020_27814cztM0_level2.evt modeM0/AS1A10_048T08_9000004020_27814cztM0_level2_quad_clean.evt
Size (bytes)851,071,680148,343,040
Size811.6 MB 141.5 MB
Events in quadrant A5,266,196949,303
Events in quadrant B6,279,732951,713
Events in quadrant C6,353,385913,789
Events in quadrant D7,111,100895,864

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231120
B0258680
C0260200
D0288450

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112941331.177616%
B112942382.107314%
C112942211.956791%
D112943713.284930%

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 12234 11294 0 0 0.00% 0.00%
B 12234 11294 44 44 0.36% 0.39%
C 12234 11294 13 13 0.11% 0.12%
D 12234 11294 256 256 2.09% 2.27%

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 13 254 18685 63.02 1365 1336 275.3
A 3 137 13399 43.82 1365 1336 275.3
A 0 226 11579 37.21 1365 1336 275.3
B 10 245 764529 2925.11 1349 1315 260.9
B 10 246 92339 348.86 1349 1315 260.9
B 0 190 47593 177.37 1349 1315 260.9
C 3 233 1050392 3409.42 1299 1305 307.7
C 14 238 205510 663.64 1299 1305 307.7
C 15 208 28956 89.86 1299 1305 307.7
D 1 52 1810960 5762.33 1307 1273 314.1
D 2 250 144187 455.06 1307 1273 314.1
D 12 233 72054 225.38 1307 1273 314.1

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