ASTROSAT CZTI

Data Quality Report

Orbit 16130

Creation date: 2024-06-27T17:18:26.577337
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/AS1T02_092T01_9000002384_16130cztM0_level2.evt modeM0/AS1T02_092T01_9000002384_16130cztM0_level2_quad_clean.evt
Size (bytes)67,659,8404,176,000
Size64.5 MB 4.0 MB
Events in quadrant A566,31212,052
Events in quadrant B497,86213,423
Events in quadrant C431,82812,821
Events in quadrant D484,40812,993

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023741
B021090
C019340
D021270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A966293.002070%
B96600.000000%
C96620.207039%
D966131.345756%

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 966 966 25 25 2.59% 2.59%
B 966 966 0 0 0.00% 0.00%
C 966 966 0 0 0.00% 0.00%
D 966 966 11 11 1.14% 1.14%

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 158207 6686.14 104 102 23.6
A 8 247 4445 183.66 104 102 23.6
A 0 226 930 35.02 104 102 23.6
B 5 65 57651 2484.47 108 105 23.2
B 0 189 12330 527.8 108 105 23.2
B 12 111 2505 103.62 108 105 23.2
C 14 238 16424 602.16 105 105 27.1
C 3 9 4579 165.09 105 105 27.1
C 13 61 747 23.69 105 105 27.1
D 1 52 72565 2640.32 103 100 27.4
D 12 221 11179 403.67 103 100 27.4
D 2 234 4625 164.87 103 100 27.4

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