ASTROSAT CZTI

Data Quality Report

Orbit 28289

Creation date: 2024-06-27T19:50:05.854754
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_102T06_9000004078_28289cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28289cztM0_level2_quad_clean.evt
Size (bytes)522,123,840107,746,560
Size497.9 MB 102.8 MB
Events in quadrant A3,256,232703,374
Events in quadrant B3,705,397719,102
Events in quadrant C3,270,560689,863
Events in quadrant D5,097,457655,590

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145900
B0157850
C0145900
D0198670

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71082473.474958%
B71083354.712999%
C71082323.263928%
D71075067.119741%

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 7108 7108 0 0 0.00% 0.00%
B 7108 7108 80 80 1.13% 1.13%
C 7108 7108 0 0 0.00% 0.00%
D 7107 7107 300 300 4.22% 4.22%

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 13 254 11754 63.64 843 824 171.7
A 3 137 8426 44.26 843 824 171.7
A 0 226 7312 37.78 843 824 171.7
B 10 245 401422 2530.22 832 811 158.3
B 12 111 20215 122.55 832 811 158.3
B 11 111 18262 110.22 832 811 158.3
C 14 238 131598 695.38 804 806 188.1
C 13 61 5539 25.16 804 806 188.1
C 3 233 3288 13.19 804 806 188.1
D 1 52 1657263 8631.59 800 774 191.9
D 8 195 229843 1193.63 800 774 191.9
D 12 250 112443 581.88 800 774 191.9

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