ASTROSAT CZTI

Data Quality Report

Orbit 59133

Creation date: 2026-09-01T23:39:35.094270
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/AS1T05_264T01_9000006602_59133cztM0_level2.fits modeM0/AS1T05_264T01_9000006602_59133cztM0_level2_quad_clean.evt
Size (bytes)717,249,60083,471,040
Size684.0 MB 79.6 MB
Events in quadrant A3,435,677638,958
Events in quadrant B3,934,294681,033
Events in quadrant C3,334,616639,231
Events in quadrant D15,328,419104,882

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149781
B0162421
C0144752
D0499751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66451812.723853%
B66463585.386699%
C6645961.444695%
D6645561284.454477%

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 7540 6645 66 66 0.88% 0.99%
B 7541 6646 179 179 2.37% 2.69%
C 7540 6645 27 27 0.36% 0.41%
D 7540 6645 5223 5223 69.27% 78.60%

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 10 251 323548 1749.72 745 726 184.5
A 13 248 129466 697.78 745 726 184.5
A 3 14 25997 136.97 745 726 184.5
B 4 236 404238 2543.46 732 705 158.7
B 0 157 160400 1006.56 732 705 158.7
B 6 255 143351 899.1 732 705 158.7
C 12 252 151119 740.66 737 730 203.0
C 5 250 116218 568.78 737 730 203.0
C 4 5 51471 249.9 737 730 203.0
D 12 1 13500337 184559.1 251 240 73.1
D 12 110 384759 5256.74 251 240 73.1
D 12 218 142703 1947.6 251 240 73.1

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