ASTROSAT CZTI

Data Quality Report

Orbit 44696

Creation date: 2024-06-27T23:05:25.472698
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_073T04_9000006010_44696cztM0_level2.fits modeM0/AS1A13_073T04_9000006010_44696cztM0_level2_quad_clean.evt
Size (bytes)547,902,72060,442,560
Size522.5 MB 57.6 MB
Events in quadrant A4,642,198464,444
Events in quadrant B2,304,399491,307
Events in quadrant C1,905,907476,369
Events in quadrant D11,069,75073,577

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173550
B0101280
C092730
D0360620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A46163016.520797%
B4616400.866551%
C461720.043318%
D4617397486.073208%

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 4616 4616 242 242 5.24% 5.24%
B 4616 4616 33 33 0.71% 0.71%
C 4617 4617 1 1 0.02% 0.02%
D 4617 4617 3478 3478 75.33% 75.33%

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 15 223 1225508 12228.4 480 469 100.2
A 10 83 1201767 11991.42 480 469 100.2
A 10 248 345788 3446.99 480 469 100.2
B 0 219 140732 1451.17 483 468 96.7
B 0 190 120757 1244.51 483 468 96.7
B 0 183 61599 632.46 483 468 96.7
C 14 254 12575 107.11 477 482 112.9
C 3 233 10173 85.84 477 482 112.9
C 15 208 6002 48.89 477 482 112.9
D 1 52 9184596 180742.86 193 187 50.8
D 11 241 574412 11300.35 193 187 50.8
D 5 222 198915 3910.83 193 187 50.8

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