ASTROSAT CZTI

Data Quality Report

Orbit 24713

Creation date: 2024-06-27T19:09:04.523283
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/AS1T03_194T01_9000003620_24713cztM0_level2.evt modeM0/AS1T03_194T01_9000003620_24713cztM0_level2_quad_clean.evt
Size (bytes)566,098,560105,626,880
Size539.9 MB 100.7 MB
Events in quadrant A3,607,209688,551
Events in quadrant B4,032,277688,823
Events in quadrant C4,777,929653,778
Events in quadrant D4,221,371648,781

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156061
B0168591
C0194121
D0173332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74581351.810137%
B74591852.480225%
C74592503.351656%
D74581982.654867%

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 7638 7458 0 0 0.00% 0.00%
B 7639 7459 4 4 0.05% 0.05%
C 7639 7459 19 19 0.25% 0.25%
D 7638 7458 39 39 0.51% 0.52%

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 13 254 11639 56.91 933 911 188.5
A 10 255 10611 51.45 933 911 188.5
A 3 137 8834 42.03 933 911 188.5
B 0 230 311766 1735.37 918 893 179.1
B 0 189 46065 252.16 918 893 179.1
B 3 64 29717 160.9 918 893 179.1
C 7 247 845862 4037.15 888 894 209.3
C 2 16 220137 1047.51 888 894 209.3
C 14 238 139207 660.84 888 894 209.3
D 1 52 535606 2396.03 906 879 223.2
D 8 195 234155 1045.27 906 879 223.2
D 2 234 31082 135.34 906 879 223.2

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