ASTROSAT CZTI

Data Quality Report

Orbit 14238

Creation date: 2024-06-27T16:52:21.449173
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/AS1G08_069T01_9000002102_14238cztM0_level2.evt modeM0/AS1G08_069T01_9000002102_14238cztM0_level2_quad_clean.evt
Size (bytes)461,871,36092,914,560
Size440.5 MB 88.6 MB
Events in quadrant A3,404,938610,610
Events in quadrant B3,302,255603,921
Events in quadrant C3,217,757587,577
Events in quadrant D3,628,614565,629

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140942
B0137221
C0132181
D0148421

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6394280.437911%
B6394791.235533%
C6394290.453550%
D6394390.609947%

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 7435 6396 0 0 0.00% 0.00%
B 7435 6396 30 30 0.40% 0.47%
C 7435 6396 0 0 0.00% 0.00%
D 7435 6396 8 8 0.11% 0.13%

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 9 143 290272 1827.02 782 765 158.5
A 8 15 89167 557.89 782 765 158.5
A 15 222 8946 51.63 782 765 158.5
B 0 229 117469 780.63 775 756 149.5
B 15 201 72587 480.44 775 756 149.5
B 4 97 26689 173.45 775 756 149.5
C 3 233 227324 1275.64 766 768 177.6
C 13 61 5432 26.26 766 768 177.6
C 14 234 4386 20.37 766 768 177.6
D 5 222 328236 1818.97 755 736 180.0
D 8 195 325239 1802.32 755 736 180.0
D 10 199 82014 451.43 755 736 180.0

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