ASTROSAT CZTI

Data Quality Report

Orbit 02969

Creation date: 2024-06-27T14:22:52.548491
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/AS1G05_238T04_9000000416_02969cztM0_level2.evt modeM0/AS1G05_238T04_9000000416_02969cztM0_level2_quad_clean.evt
Size (bytes)383,310,72068,457,600
Size365.6 MB 65.3 MB
Events in quadrant A3,046,270428,912
Events in quadrant B2,243,268439,685
Events in quadrant C2,437,457437,064
Events in quadrant D3,547,306422,730

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124683
B0102072
C0108292
D0140082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49083406.927465%
B4908160.325998%
C4908841.711491%
D49081352.750611%

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 7064 4909 210 210 2.97% 4.28%
B 7064 4909 8 8 0.11% 0.16%
C 7064 4909 49 49 0.69% 1.00%
D 7064 4909 137 137 1.94% 2.79%

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 13 9 965536 9341.48 504 492 103.3
A 8 15 104856 1010.22 504 492 103.3
A 0 50 8412 76.66 504 492 103.3
B 0 219 61629 598.89 534 522 102.0
B 14 50 18306 174.29 534 522 102.0
B 15 54 16906 160.57 534 522 102.0
C 6 80 167673 1369.25 517 521 122.1
C 0 219 132895 1084.36 517 521 122.1
C 1 192 59804 485.63 517 521 122.1
D 13 114 614024 5049.84 509 497 121.5
D 1 31 417609 3433.18 509 497 121.5
D 14 81 141592 1161.33 509 497 121.5

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