ASTROSAT CZTI

Data Quality Report

Orbit 14514

Creation date: 2024-06-27T16:56:16.199475
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_066T01_9000002138_14514cztM0_level2.evt modeM0/AS1G08_066T01_9000002138_14514cztM0_level2_quad_clean.evt
Size (bytes)480,528,00066,268,800
Size458.3 MB 63.2 MB
Events in quadrant A3,425,281399,452
Events in quadrant B3,435,984401,696
Events in quadrant C3,233,763394,386
Events in quadrant D4,033,129373,954

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142163
B0143252
C0134502
D0162322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6255600.959233%
B6255751.199041%
C6255370.591527%
D62552153.437250%

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 7441 6257 0 0 0.00% 0.00%
B 7441 6257 3 3 0.04% 0.05%
C 7441 6257 1 1 0.01% 0.02%
D 7441 6257 87 87 1.17% 1.39%

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 287635 1767.82 803 786 162.3
A 12 189 28728 172.2 803 786 162.3
A 0 226 7697 42.59 803 786 162.3
B 3 209 94842 622.61 805 788 151.1
B 0 219 68226 446.42 805 788 151.1
B 0 189 43045 279.73 805 788 151.1
C 3 233 204905 1144.52 775 779 178.3
C 13 61 5602 27.04 775 779 178.3
C 14 234 5100 24.23 775 779 178.3
D 12 110 555005 2989.36 764 745 185.4
D 10 199 409072 2202.28 764 745 185.4
D 2 120 75132 401.2 764 745 185.4

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