ASTROSAT CZTI

Data Quality Report

Orbit 14154

Creation date: 2024-06-27T16:51:08.571262
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/AS1G08_045T01_9000002092_14154cztM0_level2.evt modeM0/AS1G08_045T01_9000002092_14154cztM0_level2_quad_clean.evt
Size (bytes)504,469,44068,855,040
Size481.1 MB 65.7 MB
Events in quadrant A3,235,975421,148
Events in quadrant B4,304,296435,206
Events in quadrant C3,304,390404,384
Events in quadrant D4,010,707389,196

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134132
B0166671
C0133811
D0162171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62331051.684582%
B62334156.658110%
C6233791.267447%
D62331091.748757%

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 7409 6234 0 0 0.00% 0.00%
B 7409 6234 166 166 2.24% 2.66%
C 7409 6235 0 0 0.00% 0.00%
D 7409 6234 12 12 0.16% 0.19%

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 8 15 21343 123.56 830 814 166.1
A 9 143 17985 103.35 830 814 166.1
A 0 226 7401 39.65 830 814 166.1
B 0 85 983659 6477.42 811 795 151.7
B 0 189 63106 410.65 811 795 151.7
B 3 209 31346 201.34 811 795 151.7
C 3 233 212041 1171.19 791 796 180.4
C 13 61 5650 26.91 791 796 180.4
C 10 22 5518 26.18 791 796 180.4
D 1 52 336352 1789.82 794 775 187.5
D 12 110 272882 1451.3 794 775 187.5
D 2 152 183391 974.0 794 775 187.5

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