ASTROSAT CZTI

Data Quality Report

Orbit 28307

Creation date: 2024-06-27T19:50:18.267940
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/AS1A10_102T10_9000004080_28307cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28307cztM0_level2_quad_clean.evt
Size (bytes)1,019,900,160149,690,880
Size972.7 MB 142.8 MB
Events in quadrant A5,923,900940,684
Events in quadrant B6,493,145946,024
Events in quadrant C6,078,014909,959
Events in quadrant D11,539,301863,871

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258900
B0274410
C0261660
D0430730

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126231931.528955%
B126232802.218173%
C126232632.083498%
D12623164012.992157%

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 14593 12623 2 2 0.01% 0.02%
B 14593 12623 62 62 0.42% 0.49%
C 14593 12623 2 2 0.01% 0.02%
D 14593 12623 1249 1249 8.56% 9.89%

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 13 254 21028 63.31 1530 1494 308.5
A 8 192 18251 54.31 1530 1494 308.5
A 3 137 15085 44.05 1530 1494 308.5
B 10 246 222919 764.29 1515 1474 289.7
B 10 245 167497 573.01 1515 1474 289.7
B 4 200 73273 247.81 1515 1474 289.7
C 14 238 234360 682.04 1460 1466 341.5
C 3 233 150209 435.6 1460 1466 341.5
C 13 61 9959 24.87 1460 1466 341.5
D 1 52 2987955 8884.8 1418 1379 336.1
D 8 195 1333965 3964.33 1418 1379 336.1
D 12 233 613584 1821.26 1418 1379 336.1

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