ASTROSAT CZTI

Data Quality Report

Orbit 42589

Creation date: 2024-06-27T22:41:54.743811
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_061T07_9000005818_42589cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42589cztM0_level2_quad_clean.evt
Size (bytes)288,668,16091,584,000
Size275.3 MB 87.3 MB
Events in quadrant A2,826,241610,539
Events in quadrant B2,372,007634,986
Events in quadrant C2,504,607615,177
Events in quadrant D2,587,695557,709

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113582
B0103612
C0103582
D0110682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5064190.375197%
B506460.118483%
C506450.098736%
D5064390.770142%

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 7067 5065 8 8 0.11% 0.16%
B 7067 5065 0 0 0.00% 0.00%
C 7067 5065 1 1 0.01% 0.02%
D 7067 5065 40 40 0.57% 0.79%

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 518985 4391.72 581 568 118.0
A 15 237 37183 310.18 581 568 118.0
A 9 254 14750 120.14 581 568 118.0
B 0 245 32934 292.56 579 562 110.7
B 5 172 27467 243.15 579 562 110.7
B 5 255 19677 172.75 579 562 110.7
C 15 214 212680 1568.61 583 590 135.2
C 12 249 5143 33.67 583 590 135.2
C 4 254 4918 32.01 583 590 135.2
D 12 6 104496 749.24 577 562 138.7
D 1 52 98069 702.91 577 562 138.7
D 13 249 73988 529.31 577 562 138.7

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