ASTROSAT CZTI

Data Quality Report

Orbit 45522

Creation date: 2024-06-27T23:13:07.576500
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_031T01_9000006102_45522cztM0_level2.fits modeM0/AS1A13_031T01_9000006102_45522cztM0_level2_quad_clean.evt
Size (bytes)604,382,400127,843,200
Size576.4 MB 121.9 MB
Events in quadrant A6,799,483874,976
Events in quadrant B4,264,278901,607
Events in quadrant C3,630,275875,622
Events in quadrant D7,045,346652,285

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261761
B0185131
C0170421
D0269331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81531982.428554%
B81532132.612535%
C8154220.269806%
D8154154218.910964%

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 8558 8156 13 13 0.15% 0.16%
B 8558 8156 83 83 0.97% 1.02%
C 8559 8157 1 1 0.01% 0.01%
D 8559 8157 774 774 9.04% 9.49%

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 2995069 15304.98 929 909 195.6
A 7 3 185384 942.96 929 909 195.6
A 13 254 12369 58.58 929 909 195.6
B 15 201 177632 949.31 931 902 186.2
B 5 172 160939 859.64 931 902 186.2
B 12 18 96689 514.52 931 902 186.2
C 11 16 16960 73.36 924 929 218.5
C 14 254 6492 25.46 924 929 218.5
C 13 61 6093 23.63 924 929 218.5
D 13 249 2508871 12274.57 799 774 204.3
D 5 171 769498 3762.12 799 774 204.3
D 5 222 373934 1826.24 799 774 204.3

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