ASTROSAT CZTI

Data Quality Report

Orbit 15983

Creation date: 2024-06-27T17:16:05.386209
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/AS1T02_104T01_9000002356_15983cztM0_level2.evt modeM0/AS1T02_104T01_9000002356_15983cztM0_level2_quad_clean.evt
Size (bytes)488,246,400104,362,560
Size465.6 MB 99.5 MB
Events in quadrant A3,747,614666,307
Events in quadrant B3,621,240682,910
Events in quadrant C3,587,658657,031
Events in quadrant D3,334,535646,937

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162663
B0157262
C0155772
D0153522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72961161.589912%
B7296891.219846%
C72961381.891447%
D7296420.575658%

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 8702 7299 84 84 0.97% 1.15%
B 8702 7299 2 2 0.02% 0.03%
C 8702 7299 15 15 0.17% 0.21%
D 8702 7299 5 5 0.06% 0.07%

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 15 239 409097 2327.28 867 849 175.4
A 0 226 7634 38.68 867 849 175.4
A 12 194 6325 31.22 867 849 175.4
B 15 222 77141 453.99 878 855 168.0
B 10 245 47561 277.95 878 855 168.0
B 4 173 37005 215.13 878 855 168.0
C 14 238 129724 647.53 844 847 199.0
C 9 236 85661 426.14 844 847 199.0
C 0 207 32393 158.5 844 847 199.0
D 12 218 48525 231.65 849 823 205.9
D 10 70 36827 174.84 849 823 205.9
D 2 234 31932 151.07 849 823 205.9

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