ASTROSAT CZTI

Data Quality Report

Orbit 28299

Creation date: 2024-06-27T19:50:12.644964
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/AS1A10_102T10_9000004080_28299cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28299cztM0_level2_quad_clean.evt
Size (bytes)547,243,200109,696,320
Size521.9 MB 104.6 MB
Events in quadrant A3,109,404746,188
Events in quadrant B3,524,983771,680
Events in quadrant C3,197,550742,019
Events in quadrant D6,322,784631,130

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131270
B0143200
C0133630
D0228990

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6170360.583468%
B61701622.625608%
C6170841.361426%
D6169103916.842276%

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 7510 6171 3 3 0.04% 0.05%
B 7510 6171 100 100 1.33% 1.62%
C 7510 6171 0 0 0.00% 0.00%
D 7509 6170 973 973 12.96% 15.77%

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 15 174 33595 208.89 794 781 157.1
A 8 192 12970 77.59 794 781 157.1
A 13 254 10439 61.48 794 781 157.1
B 10 245 390555 2646.87 796 780 147.3
B 12 111 17295 112.15 796 780 147.3
B 11 111 15606 100.68 796 780 147.3
C 14 238 127838 712.63 774 780 178.3
C 3 233 52911 292.38 774 780 178.3
C 13 61 5366 25.72 774 780 178.3
D 1 52 2652611 15802.19 713 695 167.8
D 8 195 441198 2624.86 713 695 167.8
D 2 250 240473 1428.78 713 695 167.8

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