ASTROSAT CZTI

Data Quality Report

Orbit 14704

Creation date: 2024-06-27T16:58:40.997836
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_057T09_9000002174_14704cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14704cztM0_level2_quad_clean.evt
Size (bytes)461,407,680104,515,200
Size440.0 MB 99.7 MB
Events in quadrant A3,183,375702,458
Events in quadrant B3,146,510692,550
Events in quadrant C4,058,719676,139
Events in quadrant D3,174,967672,134

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133052
B0132181
C0168921
D0132561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6048721.190476%
B6048661.091270%
C6048671.107804%
D6048500.826720%

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 7309 6049 0 0 0.00% 0.00%
B 7309 6049 0 0 0.00% 0.00%
C 7309 6049 0 0 0.00% 0.00%
D 7309 6049 1 1 0.01% 0.02%

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 12 189 57170 354.97 805 790 158.8
A 8 15 16136 96.62 805 790 158.8
A 3 1 10153 58.95 805 790 158.8
B 0 205 26537 174.54 789 774 147.6
B 0 214 19368 125.97 789 774 147.6
B 12 111 16768 108.36 789 774 147.6
C 3 233 1041458 5900.86 773 778 176.4
C 13 61 5396 26.18 773 778 176.4
C 3 234 2085 7.41 773 778 176.4
D 12 110 164800 895.12 781 764 183.3
D 2 234 21293 112.02 781 764 183.3
D 2 120 18093 94.56 781 764 183.3

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