ASTROSAT CZTI

Data Quality Report

Orbit 28298

Creation date: 2024-06-27T19:50:11.955093
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_28298cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28298cztM0_level2_quad_clean.evt
Size (bytes)524,891,520121,380,480
Size500.6 MB 115.8 MB
Events in quadrant A3,145,973821,416
Events in quadrant B3,603,844856,630
Events in quadrant C3,297,593822,551
Events in quadrant D5,432,380746,549

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132370
B0146360
C0137550
D0204220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6148400.650618%
B61491201.951537%
C6148851.382563%
D61485138.344177%

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 7503 6149 5 5 0.07% 0.08%
B 7504 6150 64 64 0.85% 1.04%
C 7503 6148 0 0 0.00% 0.00%
D 7503 6148 432 432 5.76% 7.03%

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 8 192 15124 89.32 811 797 160.4
A 13 254 10754 62.08 811 797 160.4
A 3 137 7152 39.62 811 797 160.4
B 10 245 372877 2485.71 818 801 149.7
B 12 111 17631 112.44 818 801 149.7
B 11 111 15572 98.68 818 801 149.7
C 14 238 132089 716.52 800 808 183.2
C 3 233 44179 236.71 800 808 183.2
C 13 61 5523 25.73 800 808 183.2
D 1 52 1842136 10189.42 764 743 180.7
D 8 195 464875 2568.29 764 743 180.7
D 2 250 77957 427.27 764 743 180.7

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