ASTROSAT CZTI

Data Quality Report

Orbit 58713

Creation date: 2026-08-04T20:17:43.006121
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_004T06_9000006594_58713cztM0_level2.fits modeM0/AS1A14_004T06_9000006594_58713cztM0_level2_quad_clean.evt
Size (bytes)2,554,459,200383,460,480
Size2.4 GB 365.7 MB
Events in quadrant A14,526,2392,708,427
Events in quadrant B17,153,9592,822,670
Events in quadrant C15,692,3502,584,304
Events in quadrant D44,967,4671,519,739

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064103689
B071475753
C068314675
D01554892087

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05886
B05908
C05904
D05908

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A287245441.893887%
B2871213754.788938%
C287339433.281941%
D286581095338.219694%

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 32111 28767 213 213 0.66% 0.74%
B 32051 28753 688 688 2.15% 2.39%
C 32057 28774 718 718 2.24% 2.50%
D 32003 28676 9645 9645 30.14% 33.63%

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 12 114 1382609 1786.67 3137 3056 772.1
A 3 14 688667 887.94 3137 3056 772.1
A 10 251 188558 240.24 3137 3056 772.1
B 6 255 1708298 2621.93 3042 2922 650.4
B 10 44 965773 1480.34 3042 2922 650.4
B 5 172 726646 1112.69 3042 2922 650.4
C 12 249 1445228 1759.53 3026 3007 819.7
C 13 3 630673 765.76 3026 3007 819.7
C 6 223 468429 567.82 3026 3007 819.7
D 11 129 27016314 36866.4 2544 2422 732.8
D 2 249 2189365 2984.56 2544 2422 732.8
D 2 62 2032267 2770.17 2544 2422 732.8

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