ASTROSAT CZTI

Data Quality Report

Orbit 48299

Creation date: 2024-09-06T13:14:20.359182
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/AS1A13_029T01_9000006422_48299cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48299cztM0_level2_quad_clean.evt
Size (bytes)322,139,52064,897,920
Size307.2 MB 61.9 MB
Events in quadrant A4,207,199421,838
Events in quadrant B2,103,575453,282
Events in quadrant C1,883,342436,235
Events in quadrant D3,411,530365,282

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194373648
B0107841910
C0103201817
D0151142115

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09816
B09610
C010316
D010520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101
B0101
C0112
D091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40181463.633649%
B4106641.558695%
C4130330.799031%
D409343710.676765%

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 11122 4185 14 14 0.13% 0.33%
B 11122 4254 9 9 0.08% 0.21%
C 11122 4294 1 1 0.01% 0.02%
D 11123 4268 302 302 2.72% 7.08%

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 10 83 2398894 24338.48 463 453 98.5
A 13 248 10211 99.02 463 453 98.5
A 13 254 7616 72.69 463 453 98.5
B 4 21 143183 1491.52 475 460 95.7
B 5 255 52317 541.93 475 460 95.7
B 0 198 13340 134.6 475 460 95.7
C 14 254 22889 197.77 473 475 113.3
C 12 2 4901 39.05 473 475 113.3
C 0 207 4865 38.74 473 475 113.3
D 2 249 774692 6607.98 453 439 117.2
D 12 221 454747 3877.36 453 439 117.2
D 2 165 308128 2626.02 453 439 117.2

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