ASTROSAT CZTI

Data Quality Report

Orbit 45562

Creation date: 2024-06-27T23:13:40.548822
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/AS1A13_071T04_9000006110_45562cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45562cztM0_level2_quad_clean.evt
Size (bytes)434,482,560104,636,160
Size414.4 MB 99.8 MB
Events in quadrant A5,253,943697,613
Events in quadrant B3,439,321719,961
Events in quadrant C2,776,734697,881
Events in quadrant D4,141,059628,997

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197122
B0140651
C0125811
D0163921

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60772243.686029%
B60782433.998026%
C6078631.036525%
D60782323.817045%

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 7212 6078 15 15 0.21% 0.25%
B 7213 6079 84 84 1.16% 1.38%
C 7213 6079 9 9 0.12% 0.15%
D 7213 6079 117 117 1.62% 1.92%

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 10 83 2468136 17185.5 704 689 143.6
A 10 248 42849 293.64 704 689 143.6
A 13 248 18511 124.13 704 689 143.6
B 5 172 305874 2278.17 700 681 134.0
B 12 18 190054 1413.61 700 681 134.0
B 0 183 51839 381.88 700 681 134.0
C 12 2 29386 179.82 690 692 159.6
C 14 254 27466 167.79 690 692 159.6
C 0 207 20888 126.56 690 692 159.6
D 1 52 359110 2100.61 684 662 170.6
D 5 33 336337 1967.15 684 662 170.6
D 11 241 165895 968.31 684 662 170.6

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