ASTROSAT CZTI

Data Quality Report

Orbit 30966

Creation date: 2024-06-27T20:21:43.080492
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_058T11_9000004474_30966cztM0_level2.evt modeM0/AS1A10_058T11_9000004474_30966cztM0_level2_quad_clean.evt
Size (bytes)577,866,24099,348,480
Size551.1 MB 94.7 MB
Events in quadrant A3,406,016639,565
Events in quadrant B5,507,794636,847
Events in quadrant C3,877,717619,965
Events in quadrant D4,225,464615,161

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146851
B0217241
C0159281
D0172081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71401271.778711%
B71412243.136816%
C71412142.996779%
D71412733.822994%

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 7330 7141 0 0 0.00% 0.00%
B 7331 7143 5 5 0.07% 0.07%
C 7331 7141 34 34 0.46% 0.48%
D 7331 7143 150 150 2.05% 2.10%

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 12476 64.87 882 863 179.0
A 3 137 9253 46.86 882 863 179.0
A 0 226 7493 37.03 882 863 179.0
B 6 159 1988650 11902.14 865 844 167.0
B 4 80 70178 415.14 865 844 167.0
B 0 190 25450 147.33 865 844 167.0
C 3 233 260541 1301.3 845 849 199.6
C 0 10 158867 791.82 845 849 199.6
C 14 238 137089 682.69 845 849 199.6
D 2 250 640464 3124.39 853 831 204.7
D 8 195 354651 1728.29 853 831 204.7
D 2 234 35656 170.11 853 831 204.7

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