ASTROSAT CZTI

Data Quality Report

Orbit 55114

Creation date: 2025-12-05T13:32:02.404751
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_022T16_9000006532_55114cztM0_level2.fits modeM0/AS1A14_022T16_9000006532_55114cztM0_level2_quad_clean.evt
Size (bytes)361,100,160101,099,520
Size344.4 MB 96.4 MB
Events in quadrant A2,975,649658,449
Events in quadrant B2,960,374708,940
Events in quadrant C3,332,424621,904
Events in quadrant D3,556,252587,229

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142832
B0142812
C0153422
D0157452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6959480.689754%
B6959690.991522%
C6959891.278919%
D6959650.934042%

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 7829 6961 0 0 0.00% 0.00%
B 7829 6961 3 3 0.04% 0.04%
C 7829 6961 54 54 0.69% 0.78%
D 7829 6961 37 37 0.47% 0.53%

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 0 8 19401 102.87 738 717 181.6
A 4 3 17473 92.25 738 717 181.6
A 5 241 16015 84.22 738 717 181.6
B 10 247 24569 151.59 728 701 157.4
B 12 111 19390 118.7 728 701 157.4
B 14 111 17902 109.25 728 701 157.4
C 10 22 172662 889.46 708 703 193.3
C 6 223 78569 402.76 708 703 193.3
C 13 3 74847 383.51 708 703 193.3
D 3 144 238317 1197.41 707 677 198.5
D 15 94 107869 540.12 707 677 198.5
D 12 6 99127 496.07 707 677 198.5

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