ASTROSAT CZTI

Data Quality Report

Orbit 38160

Creation date: 2024-06-27T21:49:10.153934
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/AS1A07_145T01_9000005370_38160cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38160cztM0_level2_quad_clean.evt
Size (bytes)520,580,16077,016,960
Size496.5 MB 73.4 MB
Events in quadrant A2,667,617609,925
Events in quadrant B2,552,888623,650
Events in quadrant C2,468,589597,723
Events in quadrant D11,186,979146,378

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108883
B0108442
C0103472
D0365912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A505580.158259%
B5055541.068249%
C505580.158259%
D5055378974.955490%

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 7088 5056 6 6 0.08% 0.12%
B 7088 5056 33 33 0.47% 0.65%
C 7088 5056 5 5 0.07% 0.10%
D 7088 5056 3890 3890 54.88% 76.94%

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 10 83 359079 3054.09 585 574 117.4
A 12 189 14594 119.44 585 574 117.4
A 10 248 14298 116.91 585 574 117.4
B 4 171 157230 1410.21 580 564 111.1
B 15 85 60678 541.11 580 564 111.1
B 5 172 46237 411.12 580 564 111.1
C 15 214 212188 1598.66 567 571 132.4
C 0 10 25187 185.96 567 571 132.4
C 14 254 15747 114.65 567 571 132.4
D 10 203 9705343 117237.73 338 330 82.8
D 12 233 56848 682.74 338 330 82.8
D 12 235 33455 400.15 338 330 82.8

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