ASTROSAT CZTI

Data Quality Report

Orbit 42432

Creation date: 2024-06-27T22:40:06.869994
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_9000005806_42432cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42432cztM0_level2_quad_clean.evt
Size (bytes)420,134,40086,270,400
Size400.7 MB 82.3 MB
Events in quadrant A4,221,118579,973
Events in quadrant B4,720,377524,704
Events in quadrant C2,458,236593,641
Events in quadrant D3,747,804549,253

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158982
B0176582
C0105382
D0146382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52004538.711538%
B520089217.153846%
C520040.076923%
D51991743.346797%

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 7322 5201 377 377 5.15% 7.25%
B 7322 5201 731 731 9.98% 14.05%
C 7322 5201 0 0 0.00% 0.00%
D 7321 5200 149 149 2.04% 2.87%

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 14 223 1395786 12179.68 560 551 114.6
A 10 83 603110 5260.03 560 551 114.6
A 13 248 27133 232.05 560 551 114.6
B 0 186 2488384 24850.44 533 519 100.1
B 5 255 33071 325.15 533 519 100.1
B 5 172 31463 309.09 533 519 100.1
C 15 214 220987 1706.08 561 564 129.2
C 10 34 27015 204.73 561 564 129.2
C 7 220 7791 55.94 561 564 129.2
D 12 33 452014 3254.67 561 543 138.7
D 1 52 448990 3232.87 561 543 138.7
D 10 118 284362 2046.06 561 543 138.7

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