ASTROSAT CZTI

Data Quality Report

Orbit 13229

Creation date: 2024-06-27T16:38:06.949053
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/AS1A04_216T01_9000001968_13229cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13229cztM0_level2_quad_clean.evt
Size (bytes)585,524,16098,668,800
Size558.4 MB 94.1 MB
Events in quadrant A3,004,983678,702
Events in quadrant B5,176,665596,610
Events in quadrant C2,885,896680,157
Events in quadrant D6,249,481604,040

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129173
B0194192
C0126172
D0228082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6134180.293446%
B6134105017.117705%
C613490.146723%
D613481213.237692%

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 7535 6136 2 2 0.03% 0.03%
B 7535 6136 686 686 9.10% 11.18%
C 7535 6136 1 1 0.01% 0.02%
D 7535 6136 917 917 12.17% 14.94%

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 12 189 38719 251.02 752 738 151.3
A 15 239 36651 237.35 752 738 151.3
A 9 143 15075 94.75 752 738 151.3
B 4 239 2395740 18816.34 685 669 127.3
B 3 64 43714 338.17 685 669 127.3
B 0 214 24614 188.12 685 669 127.3
C 14 234 9140 49.67 736 742 169.1
C 15 208 5440 27.79 736 742 169.1
C 13 61 5359 27.31 736 742 169.1
D 1 52 3336169 20072.69 691 671 166.2
D 8 195 160755 963.37 691 671 166.2
D 5 222 95480 570.55 691 671 166.2

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