ASTROSAT CZTI

Data Quality Report

Orbit 58314

Creation date: 2026-07-08T21:13:35.351893
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_044T03_9000006588_58314cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58314cztM0_level2_quad_clean.evt
Size (bytes)506,206,08099,475,200
Size482.8 MB 94.9 MB
Events in quadrant A4,252,775640,128
Events in quadrant B6,264,864642,047
Events in quadrant C3,683,801637,938
Events in quadrant D3,984,813597,371

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178660
B0234030
C0162500
D0165530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71013765.295029%
B710192613.040417%
C7101721.013942%
D7101771.084354%

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 7101 7101 236 236 3.32% 3.32%
B 7101 7101 686 686 9.66% 9.66%
C 7101 7101 54 54 0.76% 0.76%
D 7101 7101 73 73 1.03% 1.03%

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 944533 5032.2 750 729 187.6
A 10 251 88433 467.62 750 729 187.6
A 12 114 74200 391.73 750 729 187.6
B 4 206 2592855 16821.87 718 691 154.1
B 0 156 164891 1065.58 718 691 154.1
B 2 249 151263 977.14 718 691 154.1
C 15 198 310508 1499.65 745 737 206.6
C 8 7 133224 641.39 745 737 206.6
C 3 30 92120 442.4 745 737 206.6
D 11 129 393902 1863.72 744 711 211.0
D 11 176 101080 475.75 744 711 211.0
D 12 110 80109 376.34 744 711 211.0

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