ASTROSAT CZTI

Data Quality Report

Orbit 53363

Creation date: 2025-08-10T11:59:54.057405
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_011T09_9000006494_53363cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53363cztM0_level2_quad_clean.evt
Size (bytes)1,762,997,760219,893,760
Size1.6 GB 209.7 MB
Events in quadrant A10,689,6791,555,692
Events in quadrant B12,433,0371,668,380
Events in quadrant C26,853,855874,873
Events in quadrant D13,943,1361,357,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03789
B03758
C03769
D03796

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0465112264
B0517182747
C010170010274
D0579614181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A176447684.352754%
B1753510125.771315%
C16880747344.271327%
D1738212927.432977%

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 19870 18133 424 424 2.13% 2.34%
B 19870 18064 465 465 2.34% 2.57%
C 19870 17655 6210 6210 31.25% 35.17%
D 19870 17951 1139 1139 5.73% 6.35%

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 793556 1715.35 1857 1811 461.6
A 12 115 665095 1437.03 1857 1811 461.6
A 14 254 349589 753.47 1857 1811 461.6
B 4 206 1434460 3698.0 1818 1753 387.4
B 10 28 997719 2570.72 1818 1753 387.4
B 2 249 815781 2101.11 1818 1753 387.4
C 15 178 9847922 25014.14 1438 1425 393.6
C 15 224 5692596 14457.91 1438 1425 393.6
C 15 158 4243295 10776.09 1438 1425 393.6
D 6 239 3411530 6827.55 1754 1673 499.4
D 0 18 1290319 2580.25 1754 1673 499.4
D 3 12 806360 1611.22 1754 1673 499.4

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