ASTROSAT CZTI

Data Quality Report

Orbit 05779

Creation date: 2024-06-27T14:59:02.970131
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/AS1G06_002T01_9000000742_05779cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05779cztM0_level2_quad_clean.evt
Size (bytes)464,558,40080,899,200
Size443.0 MB 77.2 MB
Events in quadrant A3,492,222489,443
Events in quadrant B3,406,816490,788
Events in quadrant C3,258,607491,185
Events in quadrant D3,423,340478,528

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01537276
B01501078
C01495081
D01536363

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01444
C01442
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71871602.226242%
B71861602.226552%
C7184700.974388%
D7194500.695024%

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 7239 7224 0 0 0.00% 0.00%
B 7238 7224 0 0 0.00% 0.00%
C 7239 7224 0 0 0.00% 0.00%
D 7239 7225 7 7 0.10% 0.10%

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 79 123087 701.62 853 832 174.2
A 15 236 88296 501.96 853 832 174.2
A 12 194 8359 43.2 853 832 174.2
B 15 204 56063 330.5 861 840 167.1
B 12 111 16273 92.36 861 840 167.1
B 11 111 13039 73.01 861 840 167.1
C 13 61 6747 30.64 831 833 193.0
C 8 128 5455 23.95 831 833 193.0
C 8 222 4363 18.29 831 833 193.0
D 8 195 124747 600.95 836 809 206.2
D 10 15 40122 190.62 836 809 206.2
D 2 14 24423 114.5 836 809 206.2

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