ASTROSAT CZTI

Data Quality Report

Orbit 03829

Creation date: 2024-06-27T14:34:05.383949
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/AS1G05_189T01_9000000492_03829cztM0_level2.evt modeM0/AS1G05_189T01_9000000492_03829cztM0_level2_quad_clean.evt
Size (bytes)1,062,564,480136,788,480
Size1013.3 MB 130.5 MB
Events in quadrant A8,042,660853,244
Events in quadrant B5,934,064867,942
Events in quadrant C12,256,410768,604
Events in quadrant D5,147,060833,322

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0319633
B0255422
C0443462
D0243002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02420
C02420
D02420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118326355.366802%
B11832950.802907%
C11832236519.988168%
D11832640.540906%

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 13147 11832 491 491 3.73% 4.15%
B 13147 11832 8 8 0.06% 0.07%
C 13147 11832 2124 2124 16.16% 17.95%
D 13147 11832 19 19 0.14% 0.16%

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 15 234 2858433 10479.96 1333 1303 272.6
A 13 251 30843 108.35 1333 1303 272.6
A 12 194 13753 45.67 1333 1303 272.6
B 15 204 395992 1491.01 1372 1336 264.7
B 0 187 73241 271.66 1372 1336 264.7
B 10 246 46145 169.29 1372 1336 264.7
C 2 53 7415723 26319.17 1203 1209 281.7
C 1 241 51587 178.83 1203 1209 281.7
C 9 247 27211 92.3 1203 1209 281.7
D 13 223 54138 165.49 1312 1273 319.5
D 2 14 45775 139.31 1312 1273 319.5
D 1 84 30707 92.14 1312 1273 319.5

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