ASTROSAT CZTI

Data Quality Report

Orbit 29462

Creation date: 2024-06-27T20:02:23.358043
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/AS1A10_021T10_9000004210_29462cztM0_level2.evt modeM0/AS1A10_021T10_9000004210_29462cztM0_level2_quad_clean.evt
Size (bytes)86,987,52016,424,640
Size83.0 MB 15.7 MB
Events in quadrant A426,841111,128
Events in quadrant B451,228115,614
Events in quadrant C444,201108,736
Events in quadrant D1,250,09893,351

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03317
B03315
C03115
D03216

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A114014305893456846
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032041455
B032981457
C032871475
D098905573

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87410.114416%
B88310.113250%
C881121.362089%
D84817420.518868%

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 7202 900 0 0 0.00% 0.00%
B 7209 915 0 0 0.00% 0.00%
C 7225 910 0 0 0.00% 0.00%
D 866 850 167 167 19.28% 19.65%

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 13 254 1446 53.91 110 108 24.8
A 3 137 1083 39.28 110 108 24.8
A 0 226 922 32.79 110 108 24.8
B 0 190 14459 599.44 109 106 23.9
B 0 230 5602 229.54 109 106 23.9
B 12 111 2710 108.75 109 106 23.9
C 14 238 21608 815.42 104 104 26.4
C 14 254 7350 274.76 104 104 26.4
C 3 233 2044 73.56 104 104 26.4
D 8 195 720758 28134.46 98 96 25.6
D 1 52 80312 3131.61 98 96 25.6
D 13 153 32424 1262.08 98 96 25.6

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