ASTROSAT CZTI

Data Quality Report

Orbit 28329

Creation date: 2024-06-27T19:50:33.732838
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_116T01_9000004082_28329cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28329cztM0_level2_quad_clean.evt
Size (bytes)551,574,72087,428,160
Size526.0 MB 83.4 MB
Events in quadrant A3,300,657556,490
Events in quadrant B3,677,688572,988
Events in quadrant C3,940,227543,916
Events in quadrant D5,334,192509,452

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138000
B0148910
C0157420
D0202650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6669340.509822%
B66681151.724655%
C66681612.414517%
D66683505.248950%

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 7864 6671 0 0 0.00% 0.00%
B 7863 6670 17 17 0.22% 0.25%
C 7863 6669 23 23 0.29% 0.34%
D 7863 6670 295 295 3.75% 4.42%

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 10879 58.96 855 839 170.3
A 3 137 8037 42.27 855 839 170.3
A 0 226 7156 37.09 855 839 170.3
B 10 245 270940 1655.32 860 840 163.2
B 12 111 19724 115.73 860 840 163.2
B 11 111 17862 104.32 860 840 163.2
C 3 233 562503 2904.27 832 838 193.4
C 14 238 135355 695.56 832 838 193.4
C 13 61 5771 25.51 832 838 193.4
D 1 52 1152452 5919.11 819 798 194.6
D 8 195 849098 4359.97 819 798 194.6
D 7 238 90129 459.13 819 798 194.6

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