ASTROSAT CZTI

Data Quality Report

Orbit 40043

Creation date: 2024-06-27T22:11:37.629107
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/AS1A12_054T03_9000005516_40043cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40043cztM0_level2_quad_clean.evt
Size (bytes)343,653,12087,425,280
Size327.7 MB 83.4 MB
Events in quadrant A3,024,181588,376
Events in quadrant B2,297,562611,384
Events in quadrant C3,540,233560,121
Events in quadrant D3,448,608518,656

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121402
B0105831
C0138451
D0141131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5270370.702087%
B527030.056926%
C52702564.857685%
D52701893.586338%

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 7242 5271 32 32 0.44% 0.61%
B 7242 5271 0 0 0.00% 0.00%
C 7242 5271 214 214 2.95% 4.06%
D 7242 5271 165 165 2.28% 3.13%

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 460127 3921.4 575 566 117.2
A 13 248 268767 2288.54 575 566 117.2
A 2 79 30855 258.45 575 566 117.2
B 0 230 22017 189.99 573 557 113.0
B 12 111 13746 116.77 573 557 113.0
B 11 111 12674 107.27 573 557 113.0
C 14 254 684999 5279.06 552 557 129.7
C 9 187 448497 3454.93 552 557 129.7
C 15 214 218435 1680.48 552 557 129.7
D 12 227 691063 5137.2 552 539 134.4
D 1 47 196912 1460.93 552 539 134.4
D 1 52 167132 1239.38 552 539 134.4

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