ASTROSAT CZTI

Data Quality Report

Orbit 44131

Creation date: 2024-06-27T22:59:34.351508
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_012T02_9000005950_44131cztM0_level2.fits modeM0/AS1A13_012T02_9000005950_44131cztM0_level2_quad_clean.evt
Size (bytes)444,905,280109,713,600
Size424.3 MB 104.6 MB
Events in quadrant A4,145,260736,296
Events in quadrant B3,603,327743,506
Events in quadrant C3,032,099721,955
Events in quadrant D5,149,493637,417

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033
B133
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169690
B0157449
C0143996
D0203573

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6934120.173060%
B69291351.948333%
C6930120.173160%
D69333214.630030%

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 6934 6934 1 1 0.01% 0.01%
B 6934 6931 90 90 1.30% 1.30%
C 6934 6932 4 4 0.06% 0.06%
D 6935 6934 239 239 3.45% 3.45%

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 1155171 7245.71 761 745 159.3
A 13 6 15276 91.2 761 745 159.3
A 15 174 14450 86.02 761 745 159.3
B 5 172 358828 2373.58 754 732 150.9
B 0 200 82003 538.69 754 732 150.9
B 4 171 49343 322.21 754 732 150.9
C 1 241 67238 379.39 741 747 175.3
C 14 96 36312 202.93 741 747 175.3
C 14 254 23271 128.52 741 747 175.3
D 2 249 498748 2722.05 728 708 183.0
D 1 47 406058 2215.45 728 708 183.0
D 1 52 324794 1771.3 728 708 183.0

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