ASTROSAT CZTI

Data Quality Report

Orbit 02990

Creation date: 2024-06-27T14:23:08.323191
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_238T05_9000000418_02990cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_02990cztM0_level2_quad_clean.evt
Size (bytes)922,256,640112,530,240
Size879.5 MB 107.3 MB
Events in quadrant A8,202,212618,479
Events in quadrant B6,574,644632,503
Events in quadrant C5,794,639624,266
Events in quadrant D6,446,945601,284

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0337335
B0292684
C0275864
D0296594

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0850
B0850
C0850
D0860

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134792461.825061%
B134791481.098004%
C13479380.281920%
D134791981.468952%

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 19944 13482 193 193 0.97% 1.43%
B 19944 13482 109 109 0.55% 0.81%
C 19944 13482 31 31 0.16% 0.23%
D 19944 13482 177 177 0.89% 1.31%

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 9 2466068 8633.77 1411 1380 285.5
A 0 31 44572 151.3 1411 1380 285.5
A 8 15 37153 125.31 1411 1380 285.5
B 2 249 313523 1104.33 1455 1424 282.6
B 0 219 189267 664.66 1455 1424 282.6
B 4 81 122272 427.61 1455 1424 282.6
C 6 80 172701 531.09 1383 1388 322.6
C 1 192 67402 204.65 1383 1388 322.6
C 15 208 59772 181.0 1383 1388 322.6
D 5 239 357796 1060.09 1368 1327 336.3
D 7 223 148362 437.26 1368 1327 336.3
D 13 239 104972 308.23 1368 1327 336.3

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