ASTROSAT CZTI

Data Quality Report

Orbit 47517

Creation date: 2024-07-11T20:14:09.721049
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/AS1C09_002T01_9000006334_47517cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47517cztM0_level2_quad_clean.evt
Size (bytes)491,584,320104,581,440
Size468.8 MB 99.7 MB
Events in quadrant A6,560,845691,048
Events in quadrant B3,862,482713,031
Events in quadrant C2,690,378700,686
Events in quadrant D4,612,280637,579

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238011
B0156861
C0124571
D0179231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60743325.465920%
B60752243.687243%
C6075450.740741%
D60751833.012346%

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 7254 6074 106 106 1.46% 1.75%
B 7255 6075 83 83 1.14% 1.37%
C 7255 6076 0 0 0.00% 0.00%
D 7255 6076 116 116 1.60% 1.91%

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 3572066 24987.12 693 679 142.9
A 13 248 235479 1642.77 693 679 142.9
A 9 191 73177 507.23 693 679 142.9
B 5 172 425524 3218.38 691 672 132.0
B 5 171 205299 1550.11 691 672 132.0
B 0 200 185691 1401.57 691 672 132.0
C 14 220 16632 100.15 681 684 159.2
C 1 3 8495 49.05 681 684 159.2
C 13 61 4767 25.64 681 684 159.2
D 6 112 898432 5270.12 682 661 170.4
D 4 222 382340 2240.54 682 661 170.4
D 2 249 333052 1951.21 682 661 170.4

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