ASTROSAT CZTI

Data Quality Report

Orbit 04472

Creation date: 2024-06-27T14:42:34.084642
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_253T03_9000000562_04472cztM0_level2.evt modeM0/AS1G05_253T03_9000000562_04472cztM0_level2_quad_clean.evt
Size (bytes)456,791,04048,758,400
Size435.6 MB 46.5 MB
Events in quadrant A3,585,323260,896
Events in quadrant B2,927,522273,114
Events in quadrant C2,887,915275,566
Events in quadrant D4,032,420253,798

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144402
B0122621
C0123361
D0158481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59013115.270293%
B5901570.965938%
C5901560.948992%
D59011813.067277%

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 7176 5902 144 144 2.01% 2.44%
B 7176 5902 0 0 0.00% 0.00%
C 7176 5902 6 6 0.08% 0.10%
D 7176 5902 101 101 1.41% 1.71%

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 13 639087 4454.56 706 692 143.3
A 0 118 136582 948.21 706 692 143.3
A 13 251 48358 332.6 706 692 143.3
B 15 204 29488 206.05 733 717 139.6
B 4 48 12264 82.7 733 717 139.6
B 15 185 12075 81.34 733 717 139.6
C 14 48 101678 617.99 710 712 163.4
C 9 16 6948 38.17 710 712 163.4
C 9 247 6717 36.76 710 712 163.4
D 12 79 744804 4394.61 694 674 169.3
D 13 235 300905 1773.08 694 674 169.3
D 12 233 165497 973.4 694 674 169.3

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