ASTROSAT CZTI

Data Quality Report

Orbit 44986

Creation date: 2024-06-27T23:08:44.498724
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_044T02_9000006038_44986cztM0_level2.fits modeM0/AS1A13_044T02_9000006038_44986cztM0_level2_quad_clean.evt
Size (bytes)830,327,040112,210,560
Size791.9 MB 107.0 MB
Events in quadrant A6,357,735851,430
Events in quadrant B4,277,087871,168
Events in quadrant C3,790,243823,395
Events in quadrant D15,706,406308,588

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245400
B0180390
C0170680
D0519560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7804710.909790%
B78041151.473603%
C7804821.050743%
D7804492063.044593%

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 7804 7804 14 14 0.18% 0.18%
B 7804 7804 56 56 0.72% 0.72%
C 7804 7804 45 45 0.58% 0.58%
D 7804 7804 4429 4429 56.75% 56.75%

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 2777044 15019.34 880 861 184.8
A 13 248 99710 534.78 880 861 184.8
A 0 243 34034 179.47 880 861 184.8
B 5 255 284352 1643.72 879 854 172.5
B 0 168 146593 844.99 879 854 172.5
B 4 171 58403 333.67 879 854 172.5
C 14 254 326578 1600.82 863 866 203.5
C 1 3 37999 182.5 863 866 203.5
C 12 2 25940 123.23 863 866 203.5
D 13 249 4063159 25994.15 610 591 156.3
D 13 187 3561376 22783.52 610 591 156.3
D 12 33 2458166 15724.68 610 591 156.3

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