ASTROSAT CZTI

Data Quality Report

Orbit 10076

Creation date: 2024-06-27T15:54:33.918921
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/AS1A03_044T03_9000001446_10076cztM0_level2.evt modeM0/AS1A03_044T03_9000001446_10076cztM0_level2_quad_clean.evt
Size (bytes)427,245,12079,548,480
Size407.5 MB 75.9 MB
Events in quadrant A2,842,605515,868
Events in quadrant B2,882,563518,596
Events in quadrant C2,725,071510,060
Events in quadrant D4,091,236456,673

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143881939
B0147102229
C0141321925
D0202214238

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014010
B014020
C014032
D014014

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235
B0234
C0230
D0234

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5944480.807537%
B5856580.990437%
C5919350.591316%
D55381572.834958%

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 9057 6634 1 1 0.01% 0.02%
B 9056 6583 3 3 0.03% 0.05%
C 9057 6637 0 0 0.00% 0.00%
D 9057 6405 73 73 0.81% 1.14%

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 0 8 44133 299.49 713 697 145.0
A 8 15 37502 253.77 713 697 145.0
A 8 5 11992 77.88 713 697 145.0
B 4 239 50447 369.35 705 688 134.7
B 0 214 29924 217.01 705 688 134.7
B 4 81 24822 179.14 705 688 134.7
C 14 234 8484 48.32 694 697 161.2
C 13 61 5127 27.49 694 697 161.2
C 4 239 3491 17.34 694 697 161.2
D 2 16 651063 3811.82 633 617 170.6
D 8 195 474201 2775.35 633 617 170.6
D 2 152 116289 677.87 633 617 170.6

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