ASTROSAT CZTI

Data Quality Report

Orbit 06519

Creation date: 2024-06-27T15:08:20.963927
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_136T02_9000000876_06519cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06519cztM0_level2_quad_clean.evt
Size (bytes)183,214,08011,338,560
Size174.7 MB 10.8 MB
Events in quadrant A1,099,39141,480
Events in quadrant B1,982,97242,189
Events in quadrant C1,086,80041,644
Events in quadrant D1,209,92940,049

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049483
B075665
C049956
D052558

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A246230.121852%
B24611455.891914%
C246050.203252%
D245970.284669%

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 2463 2463 0 0 0.00% 0.00%
B 2463 2463 101 101 4.10% 4.10%
C 2463 2463 6 6 0.24% 0.24%
D 2463 2463 5 5 0.20% 0.20%

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 15 236 10626 175.74 280 274 58.9
A 8 15 8940 147.12 280 274 58.9
A 0 226 2720 41.52 280 274 58.9
B 0 228 429619 7798.42 275 268 55.1
B 5 143 386157 7009.01 275 268 55.1
B 0 214 43568 786.47 275 268 55.1
C 9 237 29431 451.4 269 270 64.6
C 13 61 2217 30.14 269 270 64.6
C 12 4 1883 24.97 269 270 64.6
D 2 152 68381 976.48 272 263 69.8
D 2 136 32449 461.39 272 263 69.8
D 12 233 27244 386.78 272 263 69.8

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