ASTROSAT CZTI

Data Quality Report

Orbit 59343

Creation date: 2026-09-16T02:20:57.151374
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_033T01_9000006608_59343cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59343cztM0_level2_quad_clean.evt
Size (bytes)1,054,897,920244,543,680
Size1006.0 MB 233.2 MB
Events in quadrant A7,725,9341,615,005
Events in quadrant B9,599,6611,705,527
Events in quadrant C9,247,5861,571,259
Events in quadrant D11,211,0061,386,304

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03360
B03360
C03360
D03360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03503335
B03982831
C03816553
D04488224

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A163252951.807044%
B163278235.040730%
C163183041.862973%
D1632910896.669116%

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 19676 16338 63 63 0.32% 0.39%
B 19676 16338 420 420 2.13% 2.57%
C 19676 16338 79 79 0.40% 0.48%
D 19675 16337 875 875 4.45% 5.36%

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 15 233 357668 805.28 1818 1771 442.0
A 10 251 244363 548.91 1818 1771 442.0
A 6 226 22312 46.48 1818 1771 442.0
B 4 236 1509813 4030.8 1782 1712 374.1
B 4 171 307247 816.62 1782 1712 374.1
B 5 185 212646 563.78 1782 1712 374.1
C 3 233 762441 1555.86 1794 1774 488.9
C 1 16 663837 1354.17 1794 1774 488.9
C 12 252 432833 881.68 1794 1774 488.9
D 4 160 1585505 3215.95 1745 1668 492.5
D 3 12 872417 1768.04 1745 1668 492.5
D 11 129 569772 1153.52 1745 1668 492.5

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

TCT plots

Parameter TCT0 TCT_healed
Tct