ASTROSAT CZTI

Data Quality Report

Orbit 04505

Creation date: 2024-06-27T14:43:03.767751
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_083T03_9000000566_04505cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04505cztM0_level2_quad_clean.evt
Size (bytes)667,673,28089,087,040
Size636.7 MB 85.0 MB
Events in quadrant A5,853,522531,912
Events in quadrant B4,216,327554,860
Events in quadrant C3,702,259555,770
Events in quadrant D5,935,322527,727

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224432
B0173271
C0162951
D0228241

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A758385311.248846%
B75832162.848477%
C75831211.595675%
D75834926.488197%

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 7758 7585 458 458 5.90% 6.04%
B 7758 7585 57 57 0.73% 0.75%
C 7758 7585 11 11 0.14% 0.15%
D 7758 7585 321 321 4.14% 4.23%

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 31 1569958 8861.32 865 844 177.1
A 0 13 417839 2354.91 865 844 177.1
A 0 118 224836 1264.96 865 844 177.1
B 15 204 145519 837.49 896 873 172.7
B 8 3 143727 827.11 896 873 172.7
B 2 249 129082 742.32 896 873 172.7
C 9 247 257776 1268.0 869 872 202.6
C 9 54 28875 138.21 869 872 202.6
C 9 16 8315 36.73 869 872 202.6
D 14 34 1735716 8348.19 858 830 207.8
D 13 235 317578 1524.18 858 830 207.8
D 10 40 282148 1353.69 858 830 207.8

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