ASTROSAT CZTI

Data Quality Report

Orbit 06623

Creation date: 2024-06-27T15:09:40.728558
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/AS1G06_164T01_9000000896_06623cztM0_level2.evt modeM0/AS1G06_164T01_9000000896_06623cztM0_level2_quad_clean.evt
Size (bytes)803,283,840145,670,400
Size766.1 MB 138.9 MB
Events in quadrant A4,982,143926,933
Events in quadrant B5,856,344919,853
Events in quadrant C4,866,437910,344
Events in quadrant D7,860,997875,981

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228672
B0249892
C0228672
D0312072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02300
B02300
C02300
D02300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112441411.254002%
B112442682.383493%
C112441141.013874%
D112442372.107791%

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 11774 11247 3 3 0.03% 0.03%
B 11774 11247 74 74 0.63% 0.66%
C 11774 11247 8 8 0.07% 0.07%
D 11774 11247 99 99 0.84% 0.88%

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 8 15 33439 124.4 1272 1246 258.8
A 14 111 29226 108.12 1272 1246 258.8
A 13 251 18517 66.74 1272 1246 258.8
B 15 204 233145 960.45 1274 1241 241.5
B 4 48 219502 903.95 1274 1241 241.5
B 0 219 152509 626.49 1274 1241 241.5
C 9 54 55317 190.25 1228 1231 284.3
C 1 16 18575 61.01 1228 1231 284.3
C 13 61 9736 29.92 1228 1231 284.3
D 8 195 2315826 7747.44 1227 1187 298.8
D 2 33 298415 994.87 1227 1187 298.8
D 14 34 272696 908.78 1227 1187 298.8

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