ASTROSAT CZTI

Data Quality Report

Orbit 05785

Creation date: 2024-06-27T14:59:07.195836
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_106T01_9000000744_05785cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05785cztM0_level2_quad_clean.evt
Size (bytes)426,720,96082,935,360
Size407.0 MB 79.1 MB
Events in quadrant A3,085,755511,783
Events in quadrant B3,300,377525,895
Events in quadrant C2,983,111515,304
Events in quadrant D3,099,357492,561

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138905
B0142974
C0136037
D0142946

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6682751.122418%
B6682570.853038%
C6681230.344260%
D6681410.613681%

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 8693 6685 17 17 0.20% 0.25%
B 8693 6685 9 9 0.10% 0.13%
C 8693 6685 0 0 0.00% 0.00%
D 8693 6685 21 21 0.24% 0.31%

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 15 236 81616 513.31 772 756 157.5
A 15 79 18383 111.9 772 756 157.5
A 15 174 13232 79.2 772 756 157.5
B 15 204 158473 1036.7 787 765 152.1
B 4 81 35716 229.75 787 765 152.1
B 4 48 28129 179.88 787 765 152.1
C 13 61 6010 29.51 762 766 177.7
C 8 128 5087 24.32 762 766 177.7
C 8 112 2871 11.85 762 766 177.7
D 12 233 156550 851.53 752 730 183.0
D 8 195 37239 199.52 752 730 183.0
D 2 14 22151 117.06 752 730 183.0

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