ASTROSAT CZTI

Data Quality Report

Orbit 54613

Creation date: 2025-11-01T21:50:22.973771
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_066T07_9000006522_54613cztM0_level2.fits modeM0/AS1A14_066T07_9000006522_54613cztM0_level2_quad_clean.evt
Size (bytes)502,496,640100,604,160
Size479.2 MB 95.9 MB
Events in quadrant A6,219,942631,812
Events in quadrant B3,868,835702,108
Events in quadrant C3,838,382632,706
Events in quadrant D4,125,670587,798

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233711
B0163921
C0160381
D0170363

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70586519.223576%
B70582293.244545%
C70581091.544347%
D70581762.493624%

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 7883 7058 489 489 6.20% 6.93%
B 7883 7058 134 134 1.70% 1.90%
C 7883 7058 35 35 0.44% 0.50%
D 7883 7058 70 70 0.89% 0.99%

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 3 14 2902785 15380.16 763 744 188.7
A 3 110 71486 374.92 763 744 188.7
A 13 248 69675 365.32 763 744 188.7
B 1 207 385500 2326.36 762 732 165.4
B 5 172 260767 1572.21 762 732 165.4
B 10 14 66104 395.25 762 732 165.4
C 5 10 288963 1387.5 757 746 207.7
C 12 252 170172 815.63 757 746 207.7
C 4 5 120399 576.02 757 746 207.7
D 2 172 327244 1522.2 758 725 214.5
D 9 19 139183 645.48 758 725 214.5
D 2 120 121193 561.61 758 725 214.5

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