ASTROSAT CZTI

Data Quality Report

Orbit 08061

Creation date: 2024-06-27T15:27:26.490861
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_055T01_9000001114_08061cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08061cztM0_level2_quad_clean.evt
Size (bytes)468,901,44084,116,160
Size447.2 MB 80.2 MB
Events in quadrant A3,111,030526,104
Events in quadrant B3,640,475537,207
Events in quadrant C3,160,508546,110
Events in quadrant D3,870,602507,855

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133653
B0150092
C0134102
D0154962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6161721.168641%
B61611542.499594%
C6161661.071255%
D61612153.489693%

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 7471 6162 1 1 0.01% 0.02%
B 7471 6162 41 41 0.55% 0.67%
C 7471 6162 0 0 0.00% 0.00%
D 7471 6162 130 130 1.74% 2.11%

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 0 226 7595 41.66 807 792 163.3
A 12 194 7217 39.35 807 792 163.3
A 13 254 3703 17.83 807 792 163.3
B 4 239 252934 1671.54 813 798 150.8
B 11 51 122142 804.45 813 798 150.8
B 4 81 35227 228.25 813 798 150.8
C 1 16 22109 116.31 804 809 183.1
C 13 61 6224 29.57 804 809 183.1
C 8 222 2545 9.48 804 809 183.1
D 4 95 273128 1387.94 787 768 196.2
D 1 52 270820 1376.18 787 768 196.2
D 1 83 270284 1373.45 787 768 196.2

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