ASTROSAT CZTI

Data Quality Report

Orbit 24505

Creation date: 2024-06-27T19:06:40.756052
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/AS1T03_183T01_9000003606_24505cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24505cztM0_level2_quad_clean.evt
Size (bytes)494,521,920139,599,360
Size471.6 MB 133.1 MB
Events in quadrant A3,471,930982,875
Events in quadrant B4,101,309978,710
Events in quadrant C3,296,034919,945
Events in quadrant D3,674,089901,408

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143162
B0163922
C0138732
D0153542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6383691.080996%
B63843305.169173%
C6383891.394329%
D6383610.955663%

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 7713 6385 0 0 0.00% 0.00%
B 7714 6386 169 169 2.19% 2.65%
C 7713 6385 2 2 0.03% 0.03%
D 7713 6385 8 8 0.10% 0.13%

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 14 111 136520 793.52 862 846 171.0
A 4 2 13006 71.12 862 846 171.0
A 13 254 10686 57.55 862 846 171.0
B 3 64 783782 5041.35 844 828 155.3
B 12 111 17530 107.54 844 828 155.3
B 11 111 15343 93.46 844 828 155.3
C 14 238 133024 718.51 804 809 184.0
C 2 16 24004 126.05 804 809 184.0
C 13 61 5673 26.43 804 809 184.0
D 8 195 229391 1163.02 815 791 196.6
D 9 1 187443 949.6 815 791 196.6
D 1 52 155471 786.94 815 791 196.6

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