ASTROSAT CZTI

Data Quality Report

Orbit 10014

Creation date: 2024-06-27T15:53:38.354895
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/AS1G07_002T02_9000001432_10014cztM0_level2.evt modeM0/AS1G07_002T02_9000001432_10014cztM0_level2_quad_clean.evt
Size (bytes)1,532,545,920239,535,360
Size1.4 GB 228.4 MB
Events in quadrant A10,000,1631,459,413
Events in quadrant B9,893,5381,485,501
Events in quadrant C9,339,6631,461,432
Events in quadrant D15,744,3201,384,760

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04340
B04340
C04340
D04340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0437495
B0439187
C0432157
D0611396

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A212393661.723245%
B212383981.873999%
C212382181.026462%
D212399224.341071%

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 22160 21240 2 2 0.01% 0.01%
B 22160 21240 18 18 0.08% 0.08%
C 22160 21240 0 0 0.00% 0.00%
D 22160 21240 518 518 2.34% 2.44%

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 8 15 465105 927.08 2458 2401 499.1
A 13 14 40551 76.44 2458 2401 499.1
A 0 226 22145 39.56 2458 2401 499.1
B 4 81 112248 231.3 2460 2393 475.0
B 0 214 70249 142.87 2460 2393 475.0
B 4 173 54884 110.52 2460 2393 475.0
C 13 61 17564 27.32 2389 2396 555.2
C 14 67 11678 16.72 2389 2396 555.2
C 8 222 9158 12.18 2389 2396 555.2
D 1 52 2296071 3867.07 2354 2293 593.2
D 8 195 1736172 2923.14 2354 2293 593.2
D 2 16 1130094 1901.35 2354 2293 593.2

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