ASTROSAT CZTI

Data Quality Report

Orbit 30384

Creation date: 2024-06-27T20:14:34.003069
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/AS1T04_006T01_9000004370_30384cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30384cztM0_level2_quad_clean.evt
Size (bytes)533,609,280111,337,920
Size508.9 MB 106.2 MB
Events in quadrant A3,068,676753,559
Events in quadrant B5,027,290771,213
Events in quadrant C3,246,618733,946
Events in quadrant D4,412,222694,914

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127431
B0187081
C0132241
D0170321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5988651.085504%
B59881562.605210%
C59881983.306613%
D59873565.946217%

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 7283 5989 4 4 0.05% 0.07%
B 7283 5988 8 8 0.11% 0.13%
C 7283 5988 0 0 0.00% 0.00%
D 7282 5988 329 329 4.52% 5.49%

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 8 192 13888 83.69 788 776 156.7
A 13 254 12445 74.48 788 776 156.7
A 12 96 8740 50.83 788 776 156.7
B 6 159 1769872 11870.21 790 772 149.0
B 0 229 120024 800.15 790 772 149.0
B 12 111 17517 112.35 790 772 149.0
C 14 238 158015 880.71 766 772 178.5
C 14 254 47275 260.46 766 772 178.5
C 3 233 37903 207.97 766 772 178.5
D 13 104 1007308 5157.78 743 732 195.2
D 7 238 198239 1012.04 743 732 195.2
D 8 195 181923 928.44 743 732 195.2

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