ASTROSAT CZTI

Data Quality Report

Orbit 30837

Creation date: 2024-06-27T20:20:11.743543
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_071T40_9000004458_30837cztM0_level2.evt modeM0/AS1A10_071T40_9000004458_30837cztM0_level2_quad_clean.evt
Size (bytes)204,405,12028,664,640
Size194.9 MB 27.3 MB
Events in quadrant A1,264,576182,167
Events in quadrant B1,902,387181,826
Events in quadrant C1,413,791173,356
Events in quadrant D1,458,932172,058

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050111
B072011
C056391
D056791

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A218430814.102564%
B218442019.230769%
C218438017.399267%
D218427712.683150%

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 2199 2184 0 0 0.00% 0.00%
B 2199 2184 5 5 0.23% 0.23%
C 2199 2184 0 0 0.00% 0.00%
D 2199 2184 1 1 0.05% 0.05%

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 3 137 3619 46.35 328 319 71.2
A 13 254 3452 44.0 328 319 71.2
A 0 226 2805 34.91 328 319 71.2
B 6 159 579965 9101.39 310 300 63.7
B 6 36 27389 425.33 310 300 63.7
B 0 190 27157 421.69 310 300 63.7
C 3 233 139641 1835.53 305 304 75.9
C 14 238 56289 737.51 305 304 75.9
C 14 254 13393 172.43 305 304 75.9
D 8 195 153565 1914.99 323 313 80.0
D 1 52 55297 687.06 323 313 80.0
D 2 250 18752 230.41 323 313 80.0

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