ASTROSAT CZTI

Data Quality Report

Orbit 10598

Creation date: 2024-06-27T16:01:18.976376
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/AS1T01_191T01_9000001536_10598cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10598cztM0_level2_quad_clean.evt
Size (bytes)599,385,60093,323,520
Size571.6 MB 89.0 MB
Events in quadrant A3,787,141586,877
Events in quadrant B5,337,645591,237
Events in quadrant C3,639,662597,659
Events in quadrant D4,906,189554,919

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159642
B0205331
C0157281
D0192781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71111572.207847%
B711171610.068907%
C71111432.010969%
D71112894.064126%

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 7566 7112 69 69 0.91% 0.97%
B 7566 7112 413 413 5.46% 5.81%
C 7566 7112 55 55 0.73% 0.77%
D 7566 7112 203 203 2.68% 2.85%

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 13 251 76816 371.48 954 940 204.2
A 1 162 20339 94.97 954 940 204.2
A 14 254 11169 50.08 954 940 204.2
B 4 239 1721441 10176.15 876 859 169.1
B 4 81 94993 556.74 876 859 169.1
B 0 214 37058 214.09 876 859 169.1
C 1 0 7035 26.9 930 941 226.5
C 13 61 6618 25.06 930 941 226.5
C 14 234 5615 20.63 930 941 226.5
D 8 195 489578 2001.38 948 930 244.2
D 2 16 399111 1630.85 948 930 244.2
D 13 104 131353 534.18 948 930 244.2

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