ASTROSAT CZTI

Data Quality Report

Orbit 24362

Creation date: 2024-06-27T19:05:11.680565
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_9000003594_24362cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24362cztM0_level2_quad_clean.evt
Size (bytes)587,223,36098,156,160
Size560.0 MB 93.6 MB
Events in quadrant A3,057,562646,971
Events in quadrant B3,157,682678,719
Events in quadrant C3,221,905649,762
Events in quadrant D7,926,413563,435

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129951
B0132171
C0134311
D0278021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6210250.402576%
B6210360.579710%
C6210941.513688%
D6210146523.590982%

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 7510 6211 0 0 0.00% 0.00%
B 7510 6211 0 0 0.00% 0.00%
C 7510 6211 2 2 0.03% 0.03%
D 7510 6211 1121 1121 14.93% 18.05%

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 9877 57.5 792 778 158.2
A 3 137 6848 38.36 792 778 158.2
A 0 226 6763 37.82 792 778 158.2
B 12 111 17942 114.19 801 783 150.3
B 0 230 17617 112.03 801 783 150.3
B 11 111 15837 100.18 801 783 150.3
C 14 238 124373 685.05 774 780 180.4
C 3 233 66123 362.18 774 780 180.4
C 7 247 18175 96.42 774 780 180.4
D 9 35 4206409 24321.29 711 691 172.9
D 12 233 411073 2373.2 711 691 172.9
D 9 19 313863 1811.05 711 691 172.9

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