ASTROSAT CZTI

Data Quality Report

Orbit 38058

Creation date: 2024-06-27T21:47:54.411808
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/AS1A11_044T01_9000005360_38058cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38058cztM0_level2_quad_clean.evt
Size (bytes)361,915,20089,029,440
Size345.1 MB 84.9 MB
Events in quadrant A2,684,154608,879
Events in quadrant B3,565,258599,112
Events in quadrant C3,994,619574,107
Events in quadrant D2,766,865566,428

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108443
B0138322
C0148262
D0113872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A495690.181598%
B49563697.445521%
C49564819.705408%
D4957731.472665%

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 7078 4957 7 7 0.10% 0.14%
B 7078 4957 266 266 3.76% 5.37%
C 7078 4957 417 417 5.89% 8.41%
D 7079 4958 62 62 0.88% 1.25%

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 363779 3095.78 577 566 117.3
A 12 16 32806 274.79 577 566 117.3
A 13 248 17667 145.76 577 566 117.3
B 5 172 1032800 9780.09 564 549 105.5
B 4 171 198601 1876.45 564 549 105.5
B 0 229 50108 469.55 564 549 105.5
C 1 23 1495747 11772.88 550 552 127.0
C 15 214 200536 1574.64 550 552 127.0
C 3 233 108230 847.84 550 552 127.0
D 12 227 254330 1833.26 574 560 138.4
D 13 249 84246 604.55 574 560 138.4
D 2 250 56718 405.69 574 560 138.4

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