ASTROSAT CZTI

Data Quality Report

Orbit 10633

Creation date: 2024-06-27T16:01:45.731773
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/AS1T01_191T01_9000001536_10633cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10633cztM0_level2_quad_clean.evt
Size (bytes)481,115,52094,616,640
Size458.8 MB 90.2 MB
Events in quadrant A2,852,556629,799
Events in quadrant B3,406,073610,816
Events in quadrant C3,241,269619,093
Events in quadrant D4,665,819588,626

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125942
B0139901
C0138011
D0180591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5977270.451732%
B59771021.706542%
C5977410.685963%
D5977841.405387%

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 6952 5978 0 0 0.00% 0.00%
B 6952 5978 52 52 0.75% 0.87%
C 6952 5978 39 39 0.56% 0.65%
D 6952 5978 52 52 0.75% 0.87%

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 13 251 19633 122.86 730 720 153.9
A 1 162 13701 84.32 730 720 153.9
A 0 226 6822 39.64 730 720 153.9
B 4 239 493180 3554.52 716 702 138.5
B 0 214 43236 306.99 716 702 138.5
B 0 219 30627 215.99 716 702 138.5
C 4 254 501917 3053.93 695 703 164.1
C 0 207 7621 42.15 695 703 164.1
C 4 175 7234 39.79 695 703 164.1
D 1 20 1159514 6680.64 698 682 173.5
D 2 16 322097 1852.95 698 682 173.5
D 8 195 102506 587.01 698 682 173.5

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