ASTROSAT CZTI

Data Quality Report

Orbit 23591

Creation date: 2024-06-27T18:56:32.634606
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/AS1A07_054T01_9000003486_23591cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23591cztM0_level2_quad_clean.evt
Size (bytes)479,698,560117,711,360
Size457.5 MB 112.3 MB
Events in quadrant A2,782,522813,314
Events in quadrant B4,184,675794,412
Events in quadrant C2,971,866788,903
Events in quadrant D4,184,558752,721

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01244
B01231
C01231
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0211

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012792468
B017137563
C013276463
D017288797

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5955100.167926%
B59495338.959489%
C5950921.546218%
D59391402.357299%

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 7476 5977 0 0 0.00% 0.00%
B 7476 5963 442 442 5.91% 7.41%
C 7476 5972 29 29 0.39% 0.49%
D 7475 5953 92 92 1.23% 1.55%

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 6 16 25680 177.64 713 700 140.6
A 13 254 10884 72.42 713 700 140.6
A 3 137 6145 38.72 713 700 140.6
B 3 64 1230500 9524.06 691 674 129.1
B 0 189 152112 1172.77 691 674 129.1
B 0 230 55957 428.12 691 674 129.1
C 0 10 135664 851.79 686 692 158.5
C 14 238 109469 686.48 686 692 158.5
C 10 9 20368 124.17 686 692 158.5
D 1 52 717254 4350.36 686 665 164.7
D 9 85 370690 2246.39 686 665 164.7
D 7 223 246073 1489.85 686 665 164.7

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