ASTROSAT CZTI

Data Quality Report

Orbit 41983

Creation date: 2024-06-27T22:35:20.605094
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/AS1A12_104T01_9000005728_41983cztM0_level2.fits modeM0/AS1A12_104T01_9000005728_41983cztM0_level2_quad_clean.evt
Size (bytes)311,120,64085,118,400
Size296.7 MB 81.2 MB
Events in quadrant A3,026,582576,319
Events in quadrant B2,324,458598,593
Events in quadrant C2,360,325564,034
Events in quadrant D3,419,579491,564

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120473
B0101812
C0100032
D0137542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4945120.242669%
B4945100.202224%
C494530.060667%
D49453386.835187%

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 7068 4946 9 9 0.13% 0.18%
B 7068 4946 2 2 0.03% 0.04%
C 7068 4946 0 0 0.00% 0.00%
D 7068 4946 260 260 3.68% 5.26%

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 501419 4403.6 558 547 113.7
A 2 79 362933 3186.05 558 547 113.7
A 3 137 6031 48.21 558 547 113.7
B 0 156 46545 429.03 553 536 107.2
B 0 190 32896 301.75 553 536 107.2
B 4 81 30085 275.54 553 536 107.2
C 15 214 206238 1634.87 541 546 125.8
C 8 79 38409 300.94 541 546 125.8
C 15 111 5934 42.82 541 546 125.8
D 2 249 768251 6081.74 522 510 126.2
D 13 249 460719 3645.6 522 510 126.2
D 12 6 117346 925.53 522 510 126.2

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