ASTROSAT CZTI

Data Quality Report

Orbit 32003

Creation date: 2024-06-27T20:35:07.227883
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/AS1C06_010T03_9000004676_32003cztM0_level2.evt modeM0/AS1C06_010T03_9000004676_32003cztM0_level2_quad_clean.evt
Size (bytes)536,420,160136,304,640
Size511.6 MB 130.0 MB
Events in quadrant A3,171,319961,681
Events in quadrant B5,094,315957,626
Events in quadrant C3,500,825891,887
Events in quadrant D4,053,554878,854

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132302
B0194632
C0143782
D0161652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6287210.334023%
B62871221.940512%
C62871582.513122%
D62871742.767616%

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 7567 6287 0 0 0.00% 0.00%
B 7567 6287 33 33 0.44% 0.52%
C 7567 6287 55 55 0.73% 0.87%
D 7567 6287 146 146 1.93% 2.32%

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 6 11888 69.09 816 803 160.4
A 13 254 11196 64.78 816 803 160.4
A 14 238 7930 44.42 816 803 160.4
B 6 159 1685518 11509.64 801 784 146.4
B 10 245 117843 799.72 801 784 146.4
B 15 33 75828 512.68 801 784 146.4
C 0 10 243325 1398.14 754 759 173.5
C 14 238 127759 732.02 754 759 173.5
C 3 233 115282 660.11 754 759 173.5
D 8 195 488024 2750.6 765 747 177.2
D 13 249 407477 2295.93 765 747 177.2
D 2 250 76135 425.55 765 747 177.2

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