ASTROSAT CZTI

Data Quality Report

Orbit 29328

Creation date: 2024-06-27T20:02:46.668403
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_050T03_9000004216_29328cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29328cztM0_level2_quad_clean.evt
Size (bytes)914,022,72073,226,880
Size871.7 MB 69.8 MB
Events in quadrant A3,484,458521,839
Events in quadrant B4,511,449518,974
Events in quadrant C3,559,474499,550
Events in quadrant D15,675,310211,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140621
B0174041
C0142251
D0510318

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66581161.742265%
B66593605.406217%
C66591362.042349%
D6658655898.498047%

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 7723 6659 5 5 0.06% 0.08%
B 7724 6660 180 180 2.33% 2.70%
C 7724 6660 0 0 0.00% 0.00%
D 7723 6659 4992 4992 64.64% 74.97%

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 0 13 37641 208.64 884 867 176.3
A 1 113 27592 151.63 884 867 176.3
A 13 254 15215 81.4 884 867 176.3
B 10 245 551424 3421.48 853 833 160.9
B 5 172 369741 2292.47 853 833 160.9
B 0 190 103148 635.81 853 833 160.9
C 14 238 134297 683.69 838 847 195.2
C 3 233 113947 579.43 838 847 195.2
C 2 114 17203 83.79 838 847 195.2
D 12 33 12807679 126952.52 416 404 100.9
D 12 17 491609 4869.09 416 404 100.9
D 1 52 230152 2277.38 416 404 100.9

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