ASTROSAT CZTI

Data Quality Report

Orbit 03242

Creation date: 2024-06-27T14:26:38.602970
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/AS1G05_104T01_9000000440_03242cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03242cztM0_level2_quad_clean.evt
Size (bytes)469,719,36070,931,520
Size448.0 MB 67.6 MB
Events in quadrant A2,721,428439,475
Events in quadrant B3,302,875446,419
Events in quadrant C4,541,404432,534
Events in quadrant D3,258,924416,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120962
B0136161
C0175961
D0138351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5906180.304775%
B5906440.745005%
C59063205.418219%
D59061111.879445%

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 7186 5907 3 3 0.04% 0.05%
B 7186 5907 7 7 0.10% 0.12%
C 7186 5907 280 280 3.90% 4.74%
D 7186 5907 90 90 1.25% 1.52%

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 0 118 49154 344.03 691 677 140.9
A 0 226 11819 79.07 691 677 140.9
A 12 194 7434 47.95 691 677 140.9
B 15 204 485568 3659.05 708 693 132.5
B 2 249 55742 415.42 708 693 132.5
B 0 229 9056 63.11 708 693 132.5
C 14 48 1386708 8898.85 674 679 155.8
C 14 223 296413 1898.73 674 679 155.8
C 14 234 141093 901.51 674 679 155.8
D 13 223 447518 2766.95 670 653 161.5
D 13 239 130028 801.08 670 653 161.5
D 13 114 81264 499.14 670 653 161.5

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