ASTROSAT CZTI

Data Quality Report

Orbit 36962

Creation date: 2024-06-27T21:33:39.006699
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/AS1C07_001T10_9000005252_36962cztM0_level2.evt modeM0/AS1C07_001T10_9000005252_36962cztM0_level2_quad_clean.evt
Size (bytes)496,425,60086,025,600
Size473.4 MB 82.0 MB
Events in quadrant A3,306,006559,667
Events in quadrant B4,461,772527,710
Events in quadrant C3,199,114559,920
Events in quadrant D3,661,502539,904

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137093
B0172982
C0132622
D0151282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5977921.539234%
B597772812.180023%
C5977530.886732%
D59771903.178852%

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 7291 5978 72 72 0.99% 1.20%
B 7291 5978 429 429 5.88% 7.18%
C 7291 5978 36 36 0.49% 0.60%
D 7291 5978 179 179 2.46% 2.99%

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 15 237 429585 3198.64 653 640 134.1
A 10 83 247525 1841.02 653 640 134.1
A 7 16 65550 484.03 653 640 134.1
B 5 184 1609267 13528.86 625 609 118.9
B 0 221 83667 698.52 625 609 118.9
B 5 255 76988 642.35 625 609 118.9
C 15 214 261384 1762.24 637 642 148.0
C 1 23 170997 1151.35 637 642 148.0
C 14 254 89445 600.18 637 642 148.0
D 12 17 313176 2015.28 635 617 155.1
D 10 253 163015 1047.09 635 617 155.1
D 13 249 127777 819.89 635 617 155.1

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