ASTROSAT CZTI

Data Quality Report

Orbit 10809

Creation date: 2024-06-27T16:04:40.651514
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/AS1G07_003T02_9000001564_10809cztM0_level2.evt modeM0/AS1G07_003T02_9000001564_10809cztM0_level2_quad_clean.evt
Size (bytes)624,055,68066,764,160
Size595.1 MB 63.7 MB
Events in quadrant A6,075,226381,069
Events in quadrant B4,667,584397,561
Events in quadrant C3,205,065412,667
Events in quadrant D4,507,310371,945

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02238630
B01809611
C01399613
D01772513

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A656797814.892645%
B65694576.956919%
C6568630.959196%
D65674486.821989%

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 7657 6572 705 705 9.21% 10.73%
B 7657 6572 239 239 3.12% 3.64%
C 7657 6573 14 14 0.18% 0.21%
D 7657 6572 366 366 4.78% 5.57%

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 8 5 3171919 20818.58 750 736 152.3
A 15 174 9130 55.11 750 736 152.3
A 0 226 6863 40.22 750 736 152.3
B 4 239 1432421 9534.24 793 773 150.2
B 15 204 48905 320.54 793 773 150.2
B 0 214 45142 295.48 793 773 150.2
C 14 234 134814 741.87 786 790 180.7
C 13 61 5647 26.89 786 790 180.7
C 8 222 4713 21.72 786 790 180.7
D 1 52 843941 4624.54 762 744 182.3
D 2 14 228075 1246.8 762 744 182.3
D 10 157 131516 717.22 762 744 182.3

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