ASTROSAT CZTI

Data Quality Report

Orbit 43943

Creation date: 2024-06-27T22:57:30.215773
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/AS1A13_025T01_9000005920_43943cztM0_level2.fits modeM0/AS1A13_025T01_9000005920_43943cztM0_level2_quad_clean.evt
Size (bytes)229,682,88039,216,960
Size219.0 MB 37.4 MB
Events in quadrant A2,739,374243,127
Events in quadrant B1,344,602284,526
Events in quadrant C2,084,527248,453
Events in quadrant D2,134,651229,501

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099690
B056580
C078770
D080660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A253549919.684418%
B2535642.524655%
C253528811.360947%
D253528811.360947%

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 2535 2535 303 303 11.95% 11.95%
B 2535 2535 12 12 0.47% 0.47%
C 2535 2535 231 231 9.11% 9.11%
D 2535 2535 167 167 6.59% 6.59%

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 15 222 1100167 17110.67 296 288 64.3
A 10 83 330284 5133.7 296 288 64.3
A 15 223 143722 2231.38 296 288 64.3
B 5 172 71613 1112.41 310 299 64.1
B 0 213 12719 193.74 310 299 64.1
B 0 200 11393 173.05 310 299 64.1
C 1 241 729141 10329.6 290 291 70.6
C 15 158 131416 1858.36 290 291 70.6
C 3 233 41051 577.67 290 291 70.6
D 12 17 309270 4033.52 295 284 76.6
D 4 235 283129 3692.27 295 284 76.6
D 2 249 119248 1552.96 295 284 76.6

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