ASTROSAT CZTI

Data Quality Report

Orbit 46885

Creation date: 2024-06-27T23:28:57.906496
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/AS1A13_053T01_9000006274_46885cztM0_level2.fits modeM0/AS1A13_053T01_9000006274_46885cztM0_level2_quad_clean.evt
Size (bytes)612,573,120123,134,400
Size584.2 MB 117.4 MB
Events in quadrant A7,204,249841,890
Events in quadrant B6,973,657772,325
Events in quadrant C3,426,903817,637
Events in quadrant D4,457,612746,545

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264260
B0261430
C0162320
D0191230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79081622.048558%
B7908101512.835104%
C7908140.177036%
D79082172.744057%

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 7908 7908 33 33 0.42% 0.42%
B 7908 7908 475 475 6.01% 6.01%
C 7908 7908 5 5 0.06% 0.06%
D 7908 7908 173 173 2.19% 2.19%

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 3709801 20459.43 866 846 181.3
A 13 248 124346 681.25 866 846 181.3
A 0 243 12451 64.02 866 846 181.3
B 3 112 3177174 19480.56 830 804 163.1
B 4 171 262628 1605.76 830 804 163.1
B 0 198 66986 405.89 830 804 163.1
C 14 254 53471 266.53 847 848 197.4
C 15 208 47774 237.67 847 848 197.4
C 12 249 23789 116.19 847 848 197.4
D 13 249 647014 3014.61 841 812 214.4
D 2 249 290580 1351.8 841 812 214.4
D 1 52 139328 646.19 841 812 214.4

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