ASTROSAT CZTI

Data Quality Report

Orbit 48507

Creation date: 2024-09-16T14:43:05.593485
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_037T01_9000006432_48507cztM0_level2.fits modeM0/AS1A13_037T01_9000006432_48507cztM0_level2_quad_clean.evt
Size (bytes)514,863,360100,080,000
Size491.0 MB 95.4 MB
Events in quadrant A6,675,033664,337
Events in quadrant B3,055,446706,191
Events in quadrant C2,791,049681,365
Events in quadrant D6,023,864517,359

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249121
B0139001
C0135291
D0229081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66102784.205749%
B66101532.314675%
C6611630.952957%
D6611120418.212071%

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 7395 6612 0 0 0.00% 0.00%
B 7395 6611 4 4 0.05% 0.06%
C 7396 6613 0 0 0.00% 0.00%
D 7396 6612 1136 1136 15.36% 17.18%

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 3836826 25665.52 717 701 149.5
A 12 189 61360 405.83 717 701 149.5
A 13 254 12883 81.5 717 701 149.5
B 0 186 110415 752.61 726 704 145.8
B 12 3 19437 128.51 726 704 145.8
B 12 111 18879 124.68 726 704 145.8
C 13 61 4862 24.5 715 718 169.2
C 14 254 3638 17.26 715 718 169.2
C 3 233 2463 10.31 715 718 169.2
D 2 165 3150306 19546.61 642 622 161.1
D 7 38 309533 1917.07 642 622 161.1
D 2 249 31545 191.9 642 622 161.1

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