ASTROSAT CZTI

Data Quality Report

Orbit 56483

Creation date: 2026-03-07T17:02:48.749384
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/AS1A14_060T01_9000006556_56483cztM0_level2.fits modeM0/AS1A14_060T01_9000006556_56483cztM0_level2_quad_clean.evt
Size (bytes)464,195,520103,409,280
Size442.7 MB 98.6 MB
Events in quadrant A4,257,768666,528
Events in quadrant B3,586,003727,283
Events in quadrant C3,616,530648,123
Events in quadrant D5,161,409586,234

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176190
B0156792
C0160490
D0201430

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72241141.578073%
B7223751.038350%
C7223901.246020%
D72233434.748719%

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 7224 7224 61 61 0.84% 0.84%
B 7223 7223 28 28 0.39% 0.39%
C 7223 7223 81 81 1.12% 1.12%
D 7223 7223 301 301 4.17% 4.17%

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 4 95 548603 2851.92 775 755 192.1
A 4 249 188517 977.43 775 755 192.1
A 12 3 161958 839.17 775 755 192.1
B 5 172 212315 1283.37 772 744 164.9
B 0 153 59808 358.28 772 744 164.9
B 10 247 53849 322.13 772 744 164.9
C 15 230 262365 1260.57 757 750 207.5
C 1 16 199849 959.34 757 750 207.5
C 12 252 92472 441.96 757 750 207.5
D 3 12 474558 2267.79 740 708 208.9
D 12 4 435259 2079.71 740 708 208.9
D 11 176 323318 1543.97 740 708 208.9

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