ASTROSAT CZTI

Data Quality Report

Orbit 30934

Creation date: 2024-06-27T20:21:20.625716
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_058T10_9000004472_30934cztM0_level2.evt modeM0/AS1A10_058T10_9000004472_30934cztM0_level2_quad_clean.evt
Size (bytes)537,364,800108,529,920
Size512.5 MB 103.5 MB
Events in quadrant A3,244,969728,275
Events in quadrant B5,219,423733,100
Events in quadrant C3,692,208694,071
Events in quadrant D3,690,595691,667

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134522
B0196012
C0148302
D0148702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6296290.460610%
B62961241.969504%
C62963335.289072%
D6296791.254765%

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 7621 6297 0 0 0.00% 0.00%
B 7621 6297 6 6 0.08% 0.10%
C 7621 6297 15 15 0.20% 0.24%
D 7621 6297 51 51 0.67% 0.81%

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 12529 70.33 841 825 166.4
A 3 137 7825 42.06 841 825 166.4
A 0 226 7256 38.65 841 825 166.4
B 6 159 1813615 11564.91 838 819 156.7
B 0 190 34059 212.06 838 819 156.7
B 5 172 26998 167.01 838 819 156.7
C 14 238 197033 1038.91 806 814 188.9
C 0 10 133980 705.07 806 814 188.9
C 14 254 93861 492.65 806 814 188.9
D 8 195 251131 1292.73 822 805 193.6
D 2 250 147586 758.01 822 805 193.6
D 12 233 79177 404.73 822 805 193.6

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