ASTROSAT CZTI

Data Quality Report

Orbit 47218

Creation date: 2024-06-27T23:33:01.280021
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/AS1C09_005T01_9000006304_47218cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47218cztM0_level2_quad_clean.evt
Size (bytes)207,593,28042,563,520
Size198.0 MB 40.6 MB
Events in quadrant A2,948,385258,362
Events in quadrant B1,655,693295,718
Events in quadrant C1,298,123289,319
Events in quadrant D1,573,293255,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107420
B067030
C057700
D066040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A266240415.176559%
B26621445.409467%
C2662331.239669%
D26621314.921112%

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 2661 2661 148 148 5.56% 5.56%
B 2662 2662 30 30 1.13% 1.13%
C 2662 2662 2 2 0.08% 0.08%
D 2662 2662 105 105 3.94% 3.94%

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 10 83 1256427 18774.36 315 306 66.9
A 14 248 303623 4533.47 315 306 66.9
A 9 191 138646 2067.67 315 306 66.9
B 15 201 190457 2927.06 319 308 65.0
B 0 200 76290 1169.63 319 308 65.0
B 0 183 64371 986.15 319 308 65.0
C 15 208 16392 208.14 324 323 77.2
C 14 254 10727 134.76 324 323 77.2
C 0 207 5276 64.16 324 323 77.2
D 12 233 282569 3426.54 322 309 82.4
D 7 38 38088 458.62 322 309 82.4
D 2 234 13770 163.41 322 309 82.4

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