ASTROSAT CZTI

Data Quality Report

Orbit 08378

Creation date: 2024-06-27T15:31:58.969122
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/AS1C02_030T01_9000001168_08378cztM0_level2.evt modeM0/AS1C02_030T01_9000001168_08378cztM0_level2_quad_clean.evt
Size (bytes)411,779,520124,551,360
Size392.7 MB 118.8 MB
Events in quadrant A2,928,963828,073
Events in quadrant B3,159,727848,716
Events in quadrant C2,888,963841,240
Events in quadrant D3,053,933804,231

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131613
B0136062
C0131592
D0137062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6458300.464540%
B6458500.774234%
C6458140.216785%
D6458270.418086%

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 7663 6459 0 0 0.00% 0.00%
B 7663 6459 3 3 0.04% 0.05%
C 7663 6459 0 0 0.00% 0.00%
D 7663 6459 9 9 0.12% 0.14%

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 0 226 7056 41.46 759 744 152.2
A 12 194 6873 40.26 759 744 152.2
A 13 14 5534 31.46 759 744 152.2
B 0 214 86644 599.21 767 750 143.3
B 4 81 31113 211.82 767 750 143.3
B 10 16 25770 174.54 767 750 143.3
C 1 16 10502 57.6 738 742 169.5
C 13 61 5791 29.8 738 742 169.5
C 3 202 1851 6.54 738 742 169.5
D 8 195 49452 264.43 727 709 184.3
D 1 52 45034 240.46 727 709 184.3
D 5 97 44233 236.11 727 709 184.3

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