ASTROSAT CZTI

Data Quality Report

Orbit 59413

Creation date: 2026-09-20T18:15:53.346641
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_59413cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59413cztM0_level2_quad_clean.evt
Size (bytes)549,639,36098,637,120
Size524.2 MB 94.1 MB
Events in quadrant A7,730,162555,434
Events in quadrant B4,950,880695,252
Events in quadrant C3,929,893652,414
Events in quadrant D3,219,891621,942

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275855
B0191442
C0162242
D0140472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6629149922.612762%
B662971510.785941%
C66292583.891990%
D6629801.206819%

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 7754 6630 1136 1136 14.65% 17.13%
B 7754 6630 458 458 5.91% 6.91%
C 7754 6630 145 145 1.87% 2.19%
D 7754 6630 12 12 0.15% 0.18%

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 14 238 3664853 21297.03 706 691 172.1
A 14 254 1009019 5860.66 706 691 172.1
A 3 14 226819 1314.31 706 691 172.1
B 4 236 1432511 8990.09 752 725 159.3
B 5 172 185317 1159.04 752 725 159.3
B 6 255 122522 764.76 752 725 159.3
C 4 5 687524 3369.76 748 744 203.8
C 6 223 185054 904.34 748 744 203.8
C 2 12 57552 278.73 748 744 203.8
D 3 12 74424 343.01 759 725 214.9
D 12 110 59458 273.35 759 725 214.9
D 5 173 36090 164.59 759 725 214.9

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

TCT plots

Parameter TCT0 TCT_healed
Tct