ASTROSAT CZTI

Data Quality Report

Orbit 45896

Creation date: 2024-06-27T23:17:27.432645
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_033T02_9000006140_45896cztM0_level2.fits modeM0/AS1A13_033T02_9000006140_45896cztM0_level2_quad_clean.evt
Size (bytes)536,100,480101,257,920
Size511.3 MB 96.6 MB
Events in quadrant A5,465,525682,849
Events in quadrant B6,552,273637,040
Events in quadrant C2,866,373694,676
Events in quadrant D4,471,090611,046

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200501
B0237891
C0130301
D0175772

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63092393.788239%
B6309110617.530512%
C6309941.489935%
D63093625.737835%

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 7239 6310 0 0 0.00% 0.00%
B 7239 6309 577 577 7.97% 9.15%
C 7239 6310 2 2 0.03% 0.03%
D 7239 6309 241 241 3.33% 3.82%

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 2619711 17112.46 734 718 153.0
A 4 0 8602 51.51 734 718 153.0
A 3 137 8465 50.62 734 718 153.0
B 3 112 3599900 25667.42 705 682 140.2
B 5 172 54784 385.82 705 682 140.2
B 4 171 31421 219.21 705 682 140.2
C 12 2 21073 118.76 726 730 171.3
C 3 233 10785 58.7 726 730 171.3
C 13 61 4814 23.84 726 730 171.3
D 12 2 827341 4575.46 716 692 180.7
D 13 249 273847 1511.9 716 692 180.7
D 1 52 244875 1351.54 716 692 180.7

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