ASTROSAT CZTI

Data Quality Report

Orbit 19690

Creation date: 2024-06-27T18:06:12.561450
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/AS1A05_075T03_9000002940_19690cztM0_level2.evt modeM0/AS1A05_075T03_9000002940_19690cztM0_level2_quad_clean.evt
Size (bytes)104,777,28013,351,680
Size99.9 MB 12.7 MB
Events in quadrant A631,79878,122
Events in quadrant B682,64778,673
Events in quadrant C623,84974,115
Events in quadrant D1,140,16471,583

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027070
B028300
C027050
D042930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134910.074129%
B1349171.260193%
C134890.667656%
D1348624.599407%

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 1349 1349 0 0 0.00% 0.00%
B 1349 1349 10 10 0.74% 0.74%
C 1348 1348 0 0 0.00% 0.00%
D 1348 1348 48 48 3.56% 3.56%

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 0 226 1391 34.54 164 160 35.6
A 3 137 1382 34.29 164 160 35.6
A 12 194 1137 27.42 164 160 35.6
B 7 220 31645 946.86 160 156 33.3
B 0 189 13870 412.38 160 156 33.3
B 0 198 4973 144.85 160 156 33.3
C 14 238 24837 663.84 152 152 37.2
C 8 208 2105 52.51 152 152 37.2
C 3 233 1700 41.62 152 152 37.2
D 1 52 303003 7636.92 153 148 39.7
D 7 238 243516 6136.87 153 148 39.7
D 2 16 8404 208.19 153 148 39.7

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