ASTROSAT CZTI

Data Quality Report

Orbit 08486

Creation date: 2024-06-27T15:33:21.844762
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/AS1G07_007T01_9000001196_08486cztM0_level2.evt modeM0/AS1G07_007T01_9000001196_08486cztM0_level2_quad_clean.evt
Size (bytes)608,889,60094,668,480
Size580.7 MB 90.3 MB
Events in quadrant A5,501,836575,317
Events in quadrant B4,257,784593,770
Events in quadrant C3,589,294586,278
Events in quadrant D4,558,022564,690

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216951
B0175760
C0162180
D0191110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78616588.370436%
B78612072.633253%
C7861710.903193%
D78613995.075690%

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 7861 7861 356 356 4.53% 4.53%
B 7861 7861 20 20 0.25% 0.25%
C 7861 7861 0 0 0.00% 0.00%
D 7861 7861 102 102 1.30% 1.30%

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 5 16 1844574 9576.51 934 912 192.5
A 15 236 41969 213.26 934 912 192.5
A 15 174 21347 106.15 934 912 192.5
B 4 48 182525 982.91 949 923 184.8
B 0 214 156698 843.12 949 923 184.8
B 11 51 102984 552.4 949 923 184.8
C 13 61 6943 28.08 919 921 214.5
C 8 222 6262 24.9 919 921 214.5
C 3 202 2291 6.39 919 921 214.5
D 12 233 944118 3865.86 903 880 244.0
D 1 52 64235 259.66 903 880 244.0
D 7 71 47848 192.5 903 880 244.0

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