ASTROSAT CZTI

Data Quality Report

Orbit 03968

Creation date: 2024-06-27T14:35:46.887343
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/AS1G05_229T02_9000000508_03968cztM0_level2.evt modeM0/AS1G05_229T02_9000000508_03968cztM0_level2_quad_clean.evt
Size (bytes)443,041,92056,940,480
Size422.5 MB 54.3 MB
Events in quadrant A3,215,215320,440
Events in quadrant B3,540,715321,426
Events in quadrant C2,941,015320,337
Events in quadrant D3,277,872307,277

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139082
B0143931
C0133291
D0144001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6514991.519804%
B65141071.642616%
C6514600.921093%
D65141031.581210%

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 7469 6515 22 22 0.29% 0.34%
B 7469 6515 9 9 0.12% 0.14%
C 7469 6515 0 0 0.00% 0.00%
D 7469 6515 30 30 0.40% 0.46%

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 0 118 121897 762.26 770 752 158.9
A 0 50 93936 586.32 770 752 158.9
A 0 226 18578 112.16 770 752 158.9
B 3 0 238090 1566.74 782 761 151.5
B 4 81 99893 654.43 782 761 151.5
B 15 204 80432 525.95 782 761 151.5
C 13 61 6290 31.15 752 754 177.7
C 14 67 2216 8.23 752 754 177.7
C 4 250 1979 6.89 752 754 177.7
D 2 232 193565 1073.51 743 721 179.6
D 4 95 84921 468.72 743 721 179.6
D 2 63 49198 269.86 743 721 179.6

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