ASTROSAT CZTI

Data Quality Report

Orbit 43912

Creation date: 2024-06-27T22:57:07.263434
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_009T02_9000005914_43912cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43912cztM0_level2_quad_clean.evt
Size (bytes)566,913,600112,469,760
Size540.7 MB 107.3 MB
Events in quadrant A6,092,298732,969
Events in quadrant B3,694,107786,130
Events in quadrant C3,748,259747,277
Events in quadrant D6,884,101630,797

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236881
B0158061
C0160321
D0253761

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72977159.798547%
B72972913.987940%
C72982593.548918%
D729899913.688682%

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 7587 7298 332 332 4.38% 4.55%
B 7587 7298 9 9 0.12% 0.12%
C 7588 7299 24 24 0.32% 0.33%
D 7588 7299 743 743 9.79% 10.18%

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 15 223 1493384 8550.04 838 821 174.6
A 10 83 1085505 6213.54 838 821 174.6
A 7 191 122269 695.71 838 821 174.6
B 5 172 71911 418.82 845 819 169.7
B 15 36 61936 360.05 845 819 169.7
B 5 235 52478 304.33 845 819 169.7
C 3 233 222224 1119.8 833 835 197.7
C 14 254 161002 810.13 833 835 197.7
C 12 249 25786 126.2 833 835 197.7
D 7 80 1305210 6269.73 809 783 208.1
D 12 233 681179 3270.32 809 783 208.1
D 1 52 421611 2022.71 809 783 208.1

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