ASTROSAT CZTI

Data Quality Report

Orbit 02503

Creation date: 2024-06-27T14:18:44.549978
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/AS1T01_046T01_9000000372_02503cztM0_level2.fits modeM0/AS1T01_046T01_9000000372_02503cztM0_level2_quad_clean.evt
Size (bytes)205,511,04067,049,280
Size196.0 MB 63.9 MB
Events in quadrant A1,782,471444,066
Events in quadrant B1,791,575458,655
Events in quadrant C1,876,001435,690
Events in quadrant D1,834,748401,490

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084001
B083921
C085961
D087141

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A411880.194269%
B4118170.412822%
C411840.097135%
D4118210.509956%

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 5298 4119 0 0 0.00% 0.00%
B 5298 4119 0 0 0.00% 0.00%
C 5298 4119 2 2 0.04% 0.05%
D 5298 4119 14 14 0.26% 0.34%

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 15 236 17261 176.15 457 446 95.5
A 12 194 5109 48.85 457 446 95.5
A 0 226 4971 47.4 457 446 95.5
B 12 111 6364 65.68 462 451 90.0
B 11 111 5472 55.77 462 451 90.0
B 8 61 4743 47.68 462 451 90.0
C 14 223 92572 890.0 440 440 103.5
C 10 65 33337 317.79 440 440 103.5
C 12 4 14733 138.07 440 440 103.5
D 2 184 57797 545.31 436 425 105.2
D 11 130 34363 322.57 436 425 105.2
D 5 172 28688 268.63 436 425 105.2

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