ASTROSAT CZTI

Data Quality Report

Orbit 42705

Creation date: 2024-06-27T22:43:15.822756
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/AS1A05_013T01_9000005822_42705cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42705cztM0_level2_quad_clean.evt
Size (bytes)289,540,80090,132,480
Size276.1 MB 86.0 MB
Events in quadrant A2,942,607616,177
Events in quadrant B2,342,184633,579
Events in quadrant C2,470,990589,864
Events in quadrant D2,572,389539,398

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117402
B0101512
C0101682
D0110923

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4997180.360216%
B4997100.200120%
C499750.100060%
D4996571.140913%

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 7000 4998 7 7 0.10% 0.14%
B 7000 4998 5 5 0.07% 0.10%
C 7000 4998 0 0 0.00% 0.00%
D 6999 4997 48 48 0.69% 0.96%

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 517556 4354.38 583 572 118.7
A 9 143 154534 1296.77 583 572 118.7
A 13 248 12069 96.84 583 572 118.7
B 5 172 31535 276.32 581 565 112.1
B 12 111 13800 118.09 581 565 112.1
B 11 111 12723 108.48 581 565 112.1
C 15 214 210355 1608.17 567 571 130.4
C 3 233 18637 138.49 567 571 130.4
C 15 111 13890 102.1 567 571 130.4
D 12 6 108025 791.51 560 547 135.8
D 13 249 88635 648.71 560 547 135.8
D 2 249 85353 624.54 560 547 135.8

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