ASTROSAT CZTI

Data Quality Report

Orbit 28983

Creation date: 2024-06-27T19:58:48.707142
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/AS1A10_048T03_9000004154_28983cztM0_level2.evt modeM0/AS1A10_048T03_9000004154_28983cztM0_level2_quad_clean.evt
Size (bytes)403,479,36058,069,440
Size384.8 MB 55.4 MB
Events in quadrant A2,553,837357,919
Events in quadrant B2,556,872370,727
Events in quadrant C2,411,536353,521
Events in quadrant D4,351,852319,787

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108811
B0107891
C0103321
D0164391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5083200.393468%
B5083240.472162%
C5083490.963998%
D50834548.931733%

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 5084 5084 10 10 0.20% 0.20%
B 5084 5084 3 3 0.06% 0.06%
C 5084 5084 0 0 0.00% 0.00%
D 5084 5084 386 386 7.59% 7.59%

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 15 174 168309 1358.46 606 591 123.5
A 6 16 14841 115.42 606 591 123.5
A 13 6 11638 89.48 606 591 123.5
B 10 245 158762 1351.47 604 589 117.0
B 10 246 18585 153.76 604 589 117.0
B 12 111 14243 116.66 604 589 117.0
C 14 238 96217 681.08 587 591 140.4
C 2 114 12001 81.27 587 591 140.4
C 3 233 9478 63.3 587 591 140.4
D 7 80 1273599 9284.65 566 550 137.1
D 8 195 542673 3953.83 566 550 137.1
D 5 233 155526 1130.28 566 550 137.1

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