ASTROSAT CZTI

Data Quality Report

Orbit 47502

Creation date: 2024-07-10T19:46:49.633249
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/AS1A13_037T05_9000006332_47502cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47502cztM0_level2_quad_clean.evt
Size (bytes)445,124,160105,099,840
Size424.5 MB 100.2 MB
Events in quadrant A6,328,302703,053
Events in quadrant B3,500,123728,947
Events in quadrant C2,789,627697,699
Events in quadrant D3,383,991625,140

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236341
B0142671
C0126411
D0143821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61192484.052950%
B61201502.450980%
C6120590.964052%
D61202003.267974%

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 7244 6119 27 27 0.37% 0.44%
B 7245 6120 30 30 0.41% 0.49%
C 7245 6120 3 3 0.04% 0.05%
D 7245 6120 98 98 1.35% 1.60%

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 10 83 3468514 23095.91 717 703 150.1
A 13 248 55923 367.77 717 703 150.1
A 9 191 31161 202.85 717 703 150.1
B 0 200 386990 2752.13 714 693 140.4
B 5 32 144146 1022.01 714 693 140.4
B 0 198 93382 660.35 714 693 140.4
C 0 207 34994 208.55 701 706 164.4
C 12 249 9671 54.53 701 706 164.4
C 12 250 7949 44.05 701 706 164.4
D 2 249 269516 1549.71 693 672 173.5
D 7 38 188416 1082.22 693 672 173.5
D 11 192 117803 675.18 693 672 173.5

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