ASTROSAT CZTI

Data Quality Report

Orbit 30203

Creation date: 2024-06-27T20:12:11.745402
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_071T15_9000004346_30203cztM0_level2.evt modeM0/AS1A10_071T15_9000004346_30203cztM0_level2_quad_clean.evt
Size (bytes)384,978,24044,962,560
Size367.1 MB 42.9 MB
Events in quadrant A1,901,521282,746
Events in quadrant B2,914,486282,995
Events in quadrant C4,407,383252,752
Events in quadrant D2,173,991270,864

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080321
B0116331
C0154281
D088401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3848441.143451%
B3848982.546778%
C3847102726.696127%
D3847431.117754%

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 4613 3849 0 0 0.00% 0.00%
B 4613 3849 0 0 0.00% 0.00%
C 4612 3848 864 864 18.73% 22.45%
D 4612 3848 12 12 0.26% 0.31%

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 11452 109.97 488 476 99.8
A 13 254 6746 62.82 488 476 99.8
A 3 1 6585 61.21 488 476 99.8
B 6 159 1018815 10662.64 481 467 95.5
B 12 111 11976 120.51 481 467 95.5
B 11 111 11233 112.73 481 467 95.5
C 3 233 2614520 24926.55 440 443 104.9
C 14 238 69714 660.53 440 443 104.9
C 2 114 8476 76.6 440 443 104.9
D 8 195 151984 1316.67 470 459 115.1
D 7 223 151924 1316.15 470 459 115.1
D 2 250 52212 449.7 470 459 115.1

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