ASTROSAT CZTI

Data Quality Report

Orbit 06243

Creation date: 2024-06-27T15:04:39.815964
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/AS1A02_151T01_9000000818_06243cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06243cztM0_level2_quad_clean.evt
Size (bytes)498,003,840104,826,240
Size474.9 MB 100.0 MB
Events in quadrant A3,603,560666,976
Events in quadrant B3,870,930671,769
Events in quadrant C3,293,152663,384
Events in quadrant D3,792,804638,574

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161533
B0169502
C0156152
D0168302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7674390.508210%
B76741572.045869%
C7674210.273651%
D7674330.430023%

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 8324 7676 7 7 0.08% 0.09%
B 8324 7676 88 88 1.06% 1.15%
C 8324 7676 0 0 0.00% 0.00%
D 8324 7676 16 16 0.19% 0.21%

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 15 236 145053 814.48 867 849 177.0
A 15 239 91604 512.6 867 849 177.0
A 13 14 10642 55.31 867 849 177.0
B 0 219 368601 2181.47 876 853 168.6
B 4 81 31718 183.09 876 853 168.6
B 15 35 27631 158.85 876 853 168.6
C 13 61 6666 29.89 842 844 194.8
C 1 16 3447 13.36 842 844 194.8
C 8 222 2673 9.39 842 844 194.8
D 2 63 267346 1303.65 838 810 204.5
D 2 152 147685 718.38 838 810 204.5
D 2 136 59223 285.7 838 810 204.5

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