ASTROSAT CZTI

Data Quality Report

Orbit 14195

Creation date: 2024-06-27T16:51:42.950203
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/AS1C03_022T01_9000002098_14195cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14195cztM0_level2_quad_clean.evt
Size (bytes)412,508,16076,245,120
Size393.4 MB 72.7 MB
Events in quadrant A2,820,407488,122
Events in quadrant B3,074,210484,996
Events in quadrant C2,917,158465,677
Events in quadrant D3,281,779459,650

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122202
B0130971
C0122221
D0137391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5869460.783779%
B5869500.851934%
C5869210.357812%
D5869981.669790%

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 6945 5871 9 9 0.13% 0.15%
B 6945 5871 4 4 0.06% 0.07%
C 6945 5871 0 0 0.00% 0.00%
D 6945 5871 57 57 0.82% 0.97%

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 9 143 47909 323.19 713 696 146.1
A 12 96 13628 88.52 713 696 146.1
A 0 226 6315 38.46 713 696 146.1
B 0 219 77900 565.87 710 693 136.4
B 0 197 63192 458.07 710 693 136.4
B 4 142 36838 264.92 710 693 136.4
C 3 233 245292 1548.12 680 684 158.0
C 0 207 15133 91.45 680 684 158.0
C 14 234 5490 30.42 680 684 158.0
D 10 199 165140 910.99 677 665 180.5
D 10 157 138193 761.73 677 665 180.5
D 1 52 107899 593.94 677 665 180.5

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