ASTROSAT CZTI

Data Quality Report

Orbit 27199

Creation date: 2024-06-27T19:37:37.453960
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/AS1T03_243T01_9000003918_27199cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27199cztM0_level2_quad_clean.evt
Size (bytes)559,883,52097,318,080
Size533.9 MB 92.8 MB
Events in quadrant A3,368,943657,998
Events in quadrant B4,843,287650,668
Events in quadrant C3,277,419621,174
Events in quadrant D5,041,229579,194

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139290
B0186240
C0135650
D0191340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6276861.370300%
B62764867.743786%
C62761101.752709%
D62754086.501992%

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 7611 6277 2 2 0.03% 0.03%
B 7611 6277 240 240 3.15% 3.82%
C 7611 6277 0 0 0.00% 0.00%
D 7610 6276 342 342 4.49% 5.45%

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 6 16 32441 183.62 856 843 172.1
A 13 248 18857 104.68 856 843 172.1
A 8 192 13400 72.97 856 843 172.1
B 3 64 788591 5084.48 834 818 154.9
B 0 189 675809 4356.56 834 818 154.9
B 5 172 47309 300.06 834 818 154.9
C 14 238 131931 694.26 805 811 188.9
C 15 208 8721 41.88 805 811 188.9
C 13 61 5526 24.97 805 811 188.9
D 1 52 815189 4345.81 796 776 187.4
D 5 222 482681 2571.5 796 776 187.4
D 2 250 463244 2467.79 796 776 187.4

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