ASTROSAT CZTI

Data Quality Report

Orbit 07310

Creation date: 2024-06-27T15:18:19.995000
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/AS1G06_137T02_9000001002_07310cztM0_level2.evt modeM0/AS1G06_137T02_9000001002_07310cztM0_level2_quad_clean.evt
Size (bytes)479,448,00092,528,640
Size457.2 MB 88.2 MB
Events in quadrant A4,404,883538,319
Events in quadrant B3,116,095632,285
Events in quadrant C2,873,483620,053
Events in quadrant D3,701,480575,550

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174023
B0135322
C0128592
D0155482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62386139.826868%
B6238360.577108%
C6238120.192369%
D62381322.116063%

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 7563 6239 589 589 7.79% 9.44%
B 7563 6239 0 0 0.00% 0.00%
C 7563 6239 0 0 0.00% 0.00%
D 7563 6239 82 82 1.08% 1.31%

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 15 234 1612271 11510.27 689 674 140.0
A 8 15 78433 555.37 689 674 140.0
A 13 170 54473 384.24 689 674 140.0
B 0 214 64023 439.17 762 744 144.1
B 4 81 62834 430.91 762 744 144.1
B 12 111 14898 98.23 762 744 144.1
C 13 61 5649 28.96 735 739 169.5
C 12 4 3429 15.86 735 739 169.5
C 10 22 3052 13.64 735 739 169.5
D 1 20 484477 2737.49 716 695 176.7
D 2 216 175751 990.56 716 695 176.7
D 1 52 166682 939.24 716 695 176.7

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