ASTROSAT CZTI

Data Quality Report

Orbit 41653

Creation date: 2024-06-27T22:31:12.418620
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/AS1T05_116T01_9000005682_41653cztM0_level2.fits modeM0/AS1T05_116T01_9000005682_41653cztM0_level2_quad_clean.evt
Size (bytes)401,451,84094,610,880
Size382.9 MB 90.2 MB
Events in quadrant A3,105,351645,209
Events in quadrant B2,725,036660,420
Events in quadrant C3,597,208605,224
Events in quadrant D4,965,617534,801

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129712
B0125662
C0145562
D0190992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5998140.233411%
B5999210.350058%
C59993165.267545%
D599969911.651942%

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 9014 6000 5 5 0.06% 0.08%
B 9015 6001 7 7 0.08% 0.12%
C 9015 6001 286 286 3.17% 4.77%
D 9015 6001 617 617 6.84% 10.28%

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 566659 4286.09 646 632 132.1
A 13 6 11070 79.04 646 632 132.1
A 13 248 8465 59.31 646 632 132.1
B 0 186 117232 931.31 642 624 125.2
B 0 190 49305 388.79 642 624 125.2
B 4 81 21280 164.97 642 624 125.2
C 0 10 632854 4370.52 617 619 144.7
C 14 254 318507 2197.5 617 619 144.7
C 15 214 239124 1648.74 617 619 144.7
D 13 249 2160270 14664.79 599 581 147.3
D 2 249 241093 1633.13 599 581 147.3
D 1 47 120800 816.31 599 581 147.3

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