ASTROSAT CZTI

Data Quality Report

Orbit 16313

Creation date: 2024-06-27T17:20:51.863908
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/AS1A05_034T01_9000002404_16313cztM0_level2.evt modeM0/AS1A05_034T01_9000002404_16313cztM0_level2_quad_clean.evt
Size (bytes)505,661,76067,890,240
Size482.2 MB 64.7 MB
Events in quadrant A4,579,512388,121
Events in quadrant B3,511,933417,232
Events in quadrant C3,399,780411,602
Events in quadrant D3,402,621406,140

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172083
B0140312
C0137462
D0137112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61925178.349483%
B61921422.293282%
C61921602.583979%
D61921141.841085%

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 8873 6195 334 334 3.76% 5.39%
B 8873 6195 3 3 0.03% 0.05%
C 8873 6195 0 0 0.00% 0.00%
D 8873 6195 10 10 0.11% 0.16%

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 15 174 1334997 7962.1 844 829 167.6
A 0 226 7430 39.39 844 829 167.6
A 12 194 6240 32.29 844 829 167.6
B 4 173 59679 366.58 859 840 160.5
B 0 189 37288 227.08 859 840 160.5
B 15 35 20886 124.89 859 840 160.5
C 14 238 130216 678.73 832 839 190.6
C 3 233 21253 107.09 832 839 190.6
C 13 61 5927 26.69 832 839 190.6
D 2 122 75442 369.99 841 824 201.7
D 12 110 72557 355.69 841 824 201.7
D 1 52 39674 192.64 841 824 201.7

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