ASTROSAT CZTI

Data Quality Report

Orbit 04698

Creation date: 2024-06-27T14:45:45.705021
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_235T01_9000000590_04698cztM0_level2.evt modeM0/AS1G05_235T01_9000000590_04698cztM0_level2_quad_clean.evt
Size (bytes)544,121,28093,565,440
Size518.9 MB 89.2 MB
Events in quadrant A3,635,907580,458
Events in quadrant B4,259,838575,211
Events in quadrant C3,657,609569,886
Events in quadrant D4,384,801554,260

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165363
B0180072
C0165812
D0186012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79641842.310397%
B79642302.887996%
C79641551.946258%
D79642372.975892%

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 9039 7968 1 1 0.01% 0.01%
B 9039 7968 13 13 0.14% 0.16%
C 9039 7968 0 0 0.00% 0.00%
D 9039 7968 47 47 0.52% 0.59%

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 13666 65.84 935 913 193.7
A 8 15 10136 47.61 935 913 193.7
A 12 194 9645 45.08 935 913 193.7
B 4 80 320441 1752.06 943 919 182.4
B 15 204 101625 552.21 943 919 182.4
B 8 3 75038 406.42 943 919 182.4
C 14 48 36904 167.14 922 926 215.3
C 9 68 7447 30.29 922 926 215.3
C 13 61 7420 30.17 922 926 215.3
D 2 63 341876 1529.0 911 882 223.0
D 2 136 206670 922.74 911 882 223.0
D 10 15 89551 397.59 911 882 223.0

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