ASTROSAT CZTI

Data Quality Report

Orbit 13522

Creation date: 2024-06-27T16:42:02.944917
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/AS1T02_020T01_9000001990_13522cztM0_level2.evt modeM0/AS1T02_020T01_9000001990_13522cztM0_level2_quad_clean.evt
Size (bytes)277,113,60054,599,040
Size264.3 MB 52.1 MB
Events in quadrant A1,868,350343,896
Events in quadrant B2,236,891368,756
Events in quadrant C2,024,249332,123
Events in quadrant D1,980,410316,906

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083651
B093011
C085661
D088381

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A413670.169246%
B4136591.426499%
C413660.145068%
D413680.193424%

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 4137 4137 0 0 0.00% 0.00%
B 4137 4137 32 32 0.77% 0.77%
C 4137 4137 2 2 0.05% 0.05%
D 4137 4137 1 1 0.02% 0.02%

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 1 162 8666 81.91 482 472 100.0
A 0 226 4221 37.48 482 472 100.0
A 12 194 3721 32.48 482 472 100.0
B 3 64 233787 2497.1 488 476 93.4
B 4 142 43852 464.25 488 476 93.4
B 0 189 17895 186.43 488 476 93.4
C 3 233 201142 1855.21 466 470 108.2
C 0 207 4663 38.76 466 470 108.2
C 13 61 3378 26.88 466 470 108.2
D 8 195 164838 1463.11 461 446 112.4
D 13 104 50102 441.94 461 446 112.4
D 2 234 15797 136.63 461 446 112.4

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