ASTROSAT CZTI

Data Quality Report

Orbit 11433

Creation date: 2024-06-27T16:13:02.519041
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/AS1G08_010T01_9000001672_11433cztM0_level2.evt modeM0/AS1G08_010T01_9000001672_11433cztM0_level2_quad_clean.evt
Size (bytes)435,628,80094,789,440
Size415.4 MB 90.4 MB
Events in quadrant A2,912,464636,216
Events in quadrant B4,140,761623,196
Events in quadrant C2,671,681620,535
Events in quadrant D3,083,922595,331

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122602
B0160921
C0117561
D0130671

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5650701.238938%
B56504017.097345%
C5650470.831858%
D5650921.628319%

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 6910 5650 3 3 0.04% 0.05%
B 6910 5651 205 205 2.97% 3.63%
C 6910 5651 0 0 0.00% 0.00%
D 6910 5651 28 28 0.41% 0.50%

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 15 174 28734 189.77 723 710 147.7
A 1 162 24993 164.44 723 710 147.7
A 8 5 22728 149.1 723 710 147.7
B 4 239 1199435 9000.26 704 690 133.2
B 15 204 67275 499.92 704 690 133.2
B 3 189 45402 335.7 704 690 133.2
C 13 61 4896 26.6 685 689 158.2
C 12 4 1679 6.26 685 689 158.2
C 3 202 1660 6.14 685 689 158.2
D 1 52 194559 1184.64 686 668 163.7
D 2 14 77284 468.11 686 668 163.7
D 2 120 72939 441.56 686 668 163.7

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